Evaluate the following expression using the given values: (1 point)
Find x - 3y if x = 3 and y = -2.
-9
-3
3
9
Answers
Answer: 9
Step-by-step explanation:
x-3y
(3)-3(-2)
3+6
9
It is D i took the test!
Related Questions
Can yall help wit the numbers and the questions
Answers
Answer:
I have no idea
Step-by-step explanation:
You need to find the differce in the oz then find how that changes it to grams
32oz=88grams of sugar
128oz= 352grams of sugar
1. 2.75\1
2. for every oz of juice there is 2.75 grams of sugar
The Painter siblings, Elsa, Ben and Cal paint houses. They have been in the business so long that each knows exactly how many square feet each other paints in one hour and these rates never change. For their latest job, they calculated that if Elsa and Ben did the job together, it would take exactly 11 hours. On the other hand, if Elsa and Cal did the job together, it would take exactly 9 hours. Finally, Ben and Cal could do it in exactly 9.9 hours (or if you prefer, 9 hours and 54 minutes). They decided all three would paint this particular house. Ben and Cal started the job at 8 AM and Elsa joined them at 9:00. Cal left at 1:30 and so Ben and Elsafinished the job. After deducting the supply costs (paint etc.), the brothers split the net profit based on what percentage of the total square footage each painted. Who earned the most and who earned the least for this job?
Answers
Answer:
Elsa earned the most
Ben earned the least
Step-by-step explanation:
E = Elsa's speed
B = Ben's speed
C = Cal's speed
The combined speeds are:
E + B = 1/11
E + C = 1/9
B + C = 1/9.9
If we add up all three equations:
2B + 2C + 2E = 10/33
B + C + E = 5/33
If we subtract each of the first three equations from the total equation, we can find the individual speeds.
C = 5/33 − 1/11 = 2/33
B = 5/33 − 1/9 = 4/99
E = 5/33 − 1/9.9 = 5/99
Ben and Cal paint together for 1 hour. The fraction of the wall they paint is:
(1/9.9) × 1 = 10/99
Elsa, Ben, and Cal all paint together for the next 4.5 hours. The fraction of the wall they paint is:
(5/33) × 4.5 = 15/22
Ben and Elsa then finish the job. The amount of wall left is 1 − 10/99 − 15/22 = 43/198. So the time it takes is:
(43/198) / (1/11) = 43/18 hours
The fraction of the wall that Ben paints is:
(4/99) (1 + 4.5 + 43/18) = 284/891
The fraction of the wall that Cal paints is:
(2/33) (1 + 4.5) = 1/3 = 297/891
The fraction of the wall that Elsa paints is:
(5/99) (4.5 + 43/18) = 310/891
Answer:
Ben earned the most as 6 of 16.5 as a percentage = (6*100):16.5 =36.36%
We check with Elsa and she earned the least as (5*100):16.5 =30.31%
Cal earned the average as 5.5 of 16.5 as a percentage = (5.5*100):16.5 =33.33%
Step-by-step explanation:
E + B = 11hrs
E + C = 9hrs
B+C = 9.9 hrs
Lets say the house was 100ft sq
if E took 5.5 hrs
B took 5.5hrs we would have 11
C took 3.5 hrs we would have 9hrs for E+C
B took 5.5 hrs + 3.5hrs we are 0.9hrs short and see that B would need to take 0.9 more which means E works 0.9hrs less and shares 0.4 less with C having 0.5 less which gives B an extra 0.4 instead of 0.9
This equates to B: 5.9 , C: 3.9 , E: 5.1
We can change to B: 6 , C: 3.94 , E: 5.4
= E+B = 11.4 = 11
= E+C = 8.99 = 9
= B+C = 9.94 = 9.9
Percentages of fixed net pay when B: 6 , C: 3.94 , E: 5.4 = 6+ 3.94+ 5.4 = 100
Time when 15.34 hrs = 100% if working same rate changes to 16.5hrs to account for the hours given 8am-1.30pm 8am-1.30+ 9am-1.30+ = minimum 1hr more = 2pm
Cal worked 8 am till 1.30 pm = 5.5hrs = 1.66hr extra
Ben worked 8am till 2pm = 6 hrs = 0 hr extra together worked 11.5hrs
Elsa worked 9am till 2pm = 5 hrs = -0.4hr less
11.5+ 5 = 16.5 This equals 16.5hrs = 100%
Ben earned the most as 6 of 16.5 as a percentage = (6*100):16.5 =36.36%
Cal earned the average as 5.5 of 16.5 as a percentage = (5.5*100):16.5 =33.33%
We check with Elsa and she earned the least as (5*100):16.5 =30.31% is the same as 100-69.67%
The table of values represents the function g(x) and the graph shows the function f(x).
Which statement about the functions is true?
1. f(x) and g(x) are both absolute value functions.
2. f(−2) is greater than g(−2) .
3. f(x) and g(x) intersect at exactly two points.
4. f(x) is greater than g(x) for all values of x.
Answers
Answer:
2 and 3 are true
Step-by-step explanation:
1. Although f(x) is in fact an absolute value function and g(x) never goes below 0, g(x) is not an absolute value function because it does not grow linearly. This is known because, between even x intervals, the y value does not change the same amount.
2. f(-2)=2, and g(-2) is 1, meaning that this statement is in fact correct.
3. For this part, it would probably be a good idea to figure out the equation of both graphs. For g(x), starting at the line of symmetry at x=-3, y is 0, which means that the parabola has not been shifted up or down at all, and that its vertex is at (-3,0). Since it grows at the same rate as the parent function of a parabola, its graph is (x+3)^2. For f(x), you can see that it is an absolute value shifted left 3 and up 1, giving it an equation of |x+3|+1. Now, I've graphed both of them below, and you can see that they intersect at exactly two points, making this statement true.
4. Once again, the graph is helpful here. You can see that although f(x) starts off greater, g(x) with its exponential growth quickly overtakes it. Therefore, this statement is false.
Hope this helps!
Answer:
B and C
Step-by-step explanation:
do u guys think im correct
Answers
Answer:
yes
Step-by-step explanation:
according to me
got in an argument over this
Answers
Answer:
5 dimes 7nickles and 10 pennies
Step-by-step explanation:
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP PLSSSSSSSSSSSSSSS!!!!!!!!!!!!!!!!!!!!!!!!!!! HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!! ALSO EXPLAINNNNNNNNN!!!!!!!!!!!!!!!!!!
Let n! Equal n×(n-1) ×…×2×1. For example, 4! = 4×3×2×1 = 24. A clerk performs the computation: 1% of 2% of 3% of … 100% of n and gets the number 99! . How many digits in n are zero? A) 98 b) 99 c) 198 d) 199 e) 200
Answers
Answer: 198
Step-by-step explanation:
What is the measurement of angel c
Answers
The figure below shows a shaded rectangular region inside a large rectangle:
A rectangle of length 10 units and width 5 units is shown. Inside this rectangle is a smaller rectangle of length 4 units and width 2 units placed symmetrically inside the larger rectangle. The smaller rectangle is shaded gray.
What is the probability that a point chosen inside the large rectangle is not in the shaded region? (1 point)
Group of answer choices
8%
16%
50%
84%
Answers
Answer:
1/12
Step-by-step explanation:
Answer:
16%
Step-by-step explanation:
In 56 years, Kevin will be 9 times as old as he is now
How old is Kevin now?
Answers
Answer:
correct answer is 7 years
Step-by-step explanation:
A+56=9(A)
56+9A
A=7
he will be 7 years old he is pretty old
Answer:
Kevin is 7 years old right now.
Step-by-step explanation:
Let x be Kevin's age right now, that's what we're trying to find.
In 56 years, he'll be 9 times older than he is now, so we can say:
x + 56 = 9x
Now we can get the x values on the right side of the equation so that:
56 = 8x
Now solve for x and you have his current age which is 7.
A line passes through the points (2, 9) and (1, 0). What is its equation in slope-intercept form?
Answers
Answer:
y=9x-9
Step-by-step explanation:
first we need to know what is M
m=(y2-y1)/(x2-x1)
m=(0-9)/(1-2)
m=-9/-1
m=9
use the point above and plug it in
y=mx+b
0=1*9+b
b=-9
slope-intercept form y=mx+b (put the number in)
y=9x-9
Sanderson is having trouble with his assignment. His shown work is as follows:− 8/9 div 9/8 = − 89 × 98 = − 72/72 = −1 v\However, his answer does not match the answer that his teacher gives him.
Complete the description of Sanderson's mistake. Find the correct answer.
He forgot to multiply by the
(select)
, and instead just multiplied by the
(select)
that was in the denominator. The answer should look like this:
− 8/9 div 9/8 = - 8/9 × 8/9 =
need this for final exams
Answers
Answer:
He forgot to flip the second fraction.
Step-by-step explanation:
He has:
−8/9 ÷ 9/8 = −8/9 × 9/8 = −72/72 = −1
He made a mistake. When you change a division to a multiplication, you must use the reciprocal of the second fraction. You have to flipt the second fraction. He did not flip it.
This is correct:
−8/9 ÷ 9/8 = −8/9 × 8/9 = −64/81
Jason had $284.31 on his student lunch account at the beginning of the school year. During the year, he mowed lawns for extra money to add to his lunch account. He mowed 13 lawns and earned $30 for each lawn. By the end of the school year, he had spent $782.75 on his lunches. What was the balance in Jason’s account at the end of the school year?
Answers
Answer:
$-108.44
Step-by-step explanation:
Hey! Let's help you out with this question!
We always want to begin with what we know. We know that Jason has $284.31 on his lunch account and that during the year he mowed 13 lawns and earned $30 for each lawn. By the end, he spent $782.75 and now we need to figure out what his balance was at the end of the year. This can be split into 2 parts:
Part 1:
Let's start by how much money he has in total. We can take the current balance in his account of $284.31 and add the amount of money he made mowing lawns. We know that he mowed 13 lawns and earned $30 for each lawn. So, we can just chalk that total to be:
\(13*30=390\)
Based on our calculation, we know that he has earned $390 in total from mowing 13 lawns for $30 each lawn. Now that we have that, let's add that earning into his current balance and that'll give us:
\(284.31+390=674.31\)
Therefore, in total Jason has $674.31. including how much he earned from mowing lawns.
Part 2:
Now, we need to figure out Jason's account balance at the end of the school year. From here, we take the new total of Jason's account balance and subtract it from how much he spent on lunches throughout the school year. So, it would look like this:
\(674.31-782.75=-108.44\)
Unfortunately, Jason has spent too much on his lunches and his account balance at the end of the school year is $-108.44
Answer:
$-108.44
Step-by-step explanation:
HELP QUICKKK
Car A is traveling east at a steady speed of 60 miles per hour. After 2 hours, it is 130 miles east of Johnstown. Car B is traveling east on the same road. Its distance east of Johnstown is represented by the graph. Where were the two cars in relation to each other when they began traveling? A. Car A was 10 miles east of car B. B. Car A was 60 miles east of car B. C. Car B was 20 miles east of car A. D. Car B was 10 miles east of car A
Answers
Answer:
D. Car B was 10 miles east of car A
Step-by-step explanation:
→ Work out how many miles car A travelled
130
→ Work out how many miles car B travelled in 2 hrs
120
→ Find the difference
Car A is bigger by 10 miles
Answer:
Car A was 10 miles east of car B
please write a function for the points (1/3,0) (-2 3/4,0) and (0,-5) and explain the steps.
thank you!
Answers
The function for the points are y = -15x - 5
How to determine the functionFrom the information given, we have that;
The points are;
(1/3,0) (-2 3/4,0) and (0,-5)
Using the point-slope form of a linear equation, we have;
y - y₁ = m(x - x₁)
Such that;
m is the slope of the liney - y₁ and (x - x₁) are the pointsUsing (1/3, 0) and (0, -5), we have that the slope is;
m = (0 - (-5))/0 -1/3)
expand the bracket
= 5 / (-1/3)
= -15
Now, take any of the given points and substitute the values
Using (1/3, 0), we get;
y - 0 = -15(x - 1/3).
y = -15x - 5.
Learn more about functions at: https://brainly.com/question/25638609
#SPJ1
The function for the points solved by (1/3,0) (-2 3/4,0) and (0,-5) solved by point slope form is \(a=-15b-5\)
We have given the points:
(1/3,0) (-2 3/4,0) and (0,-5)
Using the formula of linear equation
\(a-\)\(a_{1}\)\(=x[b-b_{1}]\)
Where we will consider (1/3,0) = \(a-a_{1}\) and (0,-5) = \(b-b_{1}\)
that is 1/3 = \(a\), 0 = \(a_{1}\) and
0 = \(b\), -5 = \(b_{1}\)
\(x\) refers to the slope of line (take any variable)
Now for finding the value of \(x\),
\(x=a-a_{1}/b-b_{1}\)
inserting the values,
\(x=[0-[-5]]/[0-1/3]\\x= -15\)
Substitute the value of \(x\) in the equation
\(a-0=-15[b-1/3]\)
By simplifying the equation, we get
\(a=-15b-5\)
To know more about functions and points:
https://brainly.com/question/30721594
Which scenario can be modeled by the linear function
y = -15x + 500?
A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.
B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.
C. A carpet cleaning service charges $500 plus an additional $15 for every hour.
D. A membership fee for a movie streaming service is free, but each rental costs $15.
Answers
Write the following expression using the fewest possible terms.
(−2x − 13) + (19 + 5x)
3x + (−6)
7x + (−6)
7x + 32
3x + 6
Answers
\((−2x − 13) + (19 + 5x) \\ (5x - 2x) + (19 - 13) \\ 3x + 6\)
explanation:
(-2x-13)+(19+5x)
-2x+5x=7x
-13+19= 32
7x/2=3x
32/5= 6
3x+6
Thats how i do it
Isabella has has 48 roses, 32 daisies, and 24 tulips. How many bouquets can she make if each boquet must have the same number of each flower and all flowers are used? This is an LCM problem. (least common multiple)
Answers
Answer:
96 is your answer
Step-by-step explanation:
mark brainliest
Answer:
8
Step-by-step explanation:
2 x 2 x 2 = 8
help please, I don't understand this
Answers
Answer:
Step-by-step explanation: there multiple formulas that you use for these types of problems. for this problem im pretty sure you would use 1/3 times pi times hight times length
The bottom two questions at are fully visable!!
Answers
Answer:
i say it is not linear because i really think that as the number of trees increase the apples should increase as well but i noticed that when it is 10 trees its 120 apples 15 trees 150 apples then it decreases by 20 when its 20 trees y becomes 130
Step-by-step explanation:
Answer:
Non-linear
Step-by-step explanation:
To get to 100 from 5, multiply by 20. To get to 120 from 10, you multiply by 12. This means that the table in non-linear. If it was the table would go, 5 to 100, 10 to 200, 15 to 300, and 20 to 400.
HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer: probably c
Step-by-step explanation:
i divided it and got 401.063963
Answer:
C.
Step-by-step explanation:
trust -.-
At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.
Ketchup Relish Chili
54 36 60
Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042
Answers
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Answer:
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Step-by-step explanation:
PLSSS help me, i will mark BRAINLIEST!!!
Answers
Answer:
Hi!,
The Answer should be 4
Step-by-step explanation:
1. First divide 2 by 3
2. Calculate the power 5²
3. =10/3
4. = 2/3 + 10/3
5. = 4
(TO add fractions, find the LCD and then combine)
LCD--"Least Common Denominator"
ANSWER: 4
Consider the situations in the table below
Situation A: A hang glider descended 33.57 feet, and then ascended 14.98 feet.
Situation B: A football team gained 7 2/5 yards in one play, and then lost 3/5 of a yard in the next play.
Situation C: A hiker walked 3 1/6 miles yesterday and 2 1/2 miles today.
Situation D: A worker earned $23.66 Monday and spent $15.84 Tuesday.
Calculate the sum of each situation. Order the situations from least to greatest based on the numeric value of the sums.
Answers
Answer:
Step-by-step explanation:Situation A: The hang glider descended 33.57 feet and again ascended 14.98. So 33.57 - 14.98 = 18.58. So now the hang glider is at 18.58 feet
Situation B: Initially they gained 7 2/5 yards and then lost 3/5 yards.
7 2/5 yards can be written as 37/5. As they lost 3/5 yards, 37/5 - 3/5 = 34/5. So the remaining yards are 34/5 yards.
Situation C: Hiker walked 3 1/6 miles and then 2 1/2 miles. So the total distance is 3 1/6 + 2 1/2 = 5 4/6 miles.
Situation D: Total amount earned is $23.66 + $15.84 = $39.5.
Answer:
Step-by-step explanation:Situation A: The hang glider descended 33.57 feet and again ascended 14.98. So 33.57 - 14.98 = 18.58. So now the hang glider is at 18.58 feet
Situation B: Initially they gained 7 2/5 yards and then lost 3/5 yards.
7 2/5 yards can be written as 37/5. As they lost 3/5 yards, 37/5 - 3/5 = 34/5. So the remaining yards are 34/5 yards.
Situation C: Hiker walked 3 1/6 miles and then 2 1/2 miles. So the total distance is 3 1/6 + 2 1/2 = 5 4/6 miles.
Situation D: Total amount earned is $23.66 + $15.84 = $39.5.
Step-by-step explanation:
You drive your car for 3 hours at an average of 130 km per hours. How far did you go?
Answers
3x130=390
Hope it helps
help me pls, thanks ^^
Answers
Answer:
As the time increases, the distance from the floor decreases by 40 cm per second. You find 40 by taking (6,1140) and (9,1020). The slope formula is y2 - y1 over x2- x1. Plug in the variables and you get (1020-1140)/(9-6)= -120/3= -40.
Step-by-step explanation:
The Kirkland’s have a pool in their backyard that can hold a maximum of 4,500 gallons of water. The pool already contains 1,500 gallons of water. Mr. Kirkland begins to add more water at a rate of 30 gallons per minute. Write an inequality that shows the number of minutes, m, Mr. Kirkland can continue to add water to the pool without exceeding the maximum number of gallons.
Answers
Answer:30M + 1500 less than or equal to 4500
this should be the right awnser
Step-by-step explanation:
Answer:
100 minutes (or 1 hour and 40 minutes)
Step-by-step explanation:
to start I subtracted 4,500( how much it can hold) by 1,500 (how much it has already) to get 3,000.
4500 - 1500 = 3000 (300 + 1500 = 4500)
so the pool would need 3,000 more gallons of water to reach the limit,
then divide 3,000 by 30 to know how many 30 gallows would be needed to reach the limit
3,000 ÷ 30 = 100 (100 x 30 = 3,00 so this is correct)
He would need to add water for 100m to avoid exceeding the limit.
That is as far as I know, you can utilize this problem to write an appropriate Inequality, I hope this is helpful!
The box plots shown represent the average mileage of two different types of cars. Use the box plots to compare the data sets.
Drag each value to show if it is greater for SUVs, greater for sedans, or if there is not enough information to tell.
Answers
Answer:
Step-by-step explanation:
A cereal box has a height of 32 centimeters. It has a base with an area of 160 square centimeters.
What is the volume, in cubic centimeters, of the cereal box?
What is the equation of the line in slope intercept form that has a slope of 1/2 and passes through (2,3)
Answers
Hope this helps
Answer:
y = 1/2x + 2
*view the attached graph to double check the answer*
Step-by-step explanation:
y = mx + b
m = slope
b = y-intercept
y = mx + b
y = 1/2x + b
(2, 3) ==> substitute the numbers into the equation
y = 1/2x + b
3 = 1/2(2) + b
3 = 1 + b
-1 -1
2 = b
Our final equation: y = 1/2x + 2
Check your answer using (2, 3):
y = 1/2x + 2
3 = 1/2(2) + 2
3 = 1 + 2
3 = 3
This statement is correct
Hope this helps!
How are the pieces of a step function related to the domain of the function? Justify your thinking.
Answers
Step-by-step explanation:
As we know, for any function domain is referred to as the set of input values that can be taken for an independent variable in the given function. Range of a function is defined as the set of output values generated for the domain (input values) of the function. In the case of a step function, for each value of x, f(x) takes the value of the greatest integer, less than or equal to x. For example:
[-2.19] = -3
[3.67] = 3
[-0.83] = -1
The domain of this function is a group of real numbers that are divided into intervals such as [-5, 3), [-4, 2), [-3, 1), [-2, 0) and so on. This explains the domain and range relations of a step function.
This can be generalized as given below:
[x] = -2, -2 ≤ x < -1
[x] = -1, -1 ≤ x < 0
[x] = 0, 0 ≤ x < 1
[x] = 1, 1 ≤ x < 2
For example:
1-2.191 =-3
13.671 = 3
[-0.831 = -1
The domain of this function is a group of real numbers that are divided into intervals such as [-5, 3), [-4, 2), [-3, 1), [-2, 0) and so on.
This explains the domain and range relations of a step function.
ANSWER
i want to sleep. (+20 points lol) question in image
Answers
i m sorry i dont know the answer
let me know if you need help
Answer:
a. 3
b. -10
Hope this helps! I told ya how to do it in comments.
(I choose to write this here because one of the previous answers were deleted, SO i was capable of submitting the answer!)