A math teacher surveys 10 randomly selected students in her classes. She finds that 7 of the 10 speak more than one language fluently. Based on this information, how many of her 140 students could be expected to speak more than one language fluently?
Answers
Answer:
Step-by-step explanation:
Answer:
98
Step-by-step explanation:
let 'x' = # students speaking more than one language
7 = x
10 140
10x = 980
x = 98
Related Questions
HELPPP!!! PLZ I AM GIVING 15 POINTS!!!!!!!!
what property is shown in the equation?
7x/1 = 7x (7x/1 is supposed to be a fraction, / is supposed to be the line)
reciprocal property, identity property of division, negative one property of division, division into zero property
what property is shown in the equation?
-53 ÷ 1 = -53
negative one property of division, identity property of division, division in zero property, reciprocal property
Answers
Answer:
all real numbers
Step-by-step explanation:
Answer:
x=1
Step-by-step explanation:
Anything divided by one gives itself.
PLEASE ANSWER ASAP!!!!!!!
Answers
Answer:
25 1/2 is the answer !!!!!!!!!!!!!!!!!!!!!!!!!!!
Step-by-step explanation:
Answer:
10\(\frac{1}{2}\) = 10.5
12\(\frac{2}{5}\) = 12.4
Kayla
10.5 mph * 2.25 hours = 23.62 total miles traveled
Talishia
23.62 miles / 12.4 mph = 1.9 hours
It will take her 1.9 hours to complete the ride
help me its due today :')
Answers
Answer:
9 feet easy to solve this is answer
Please help! Thank you!
Answers
Answer:
525
Step-by-step explanation:
If it's just asking to find the average of heads then times it by 20 then just do 32+28+21+24 to get 105 and divide it by 4 to get 26.25 then times it by 20 since this is the average of 50 throws and it's asking for the average of 1,000 throws which is 525
Find the missing value: 49, 35, 32, 41, x when the mean is 41.
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solve for n. show your work.
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Please help me create a ratio for the 2 percentages in each box. I did the first two but i need help with the other ones. Please help i need this asap
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Answer:
number 3 is = 1 : 1
number 4 is = 2 ; 2 ; 1
please mark me as brainliest
Step-by-step explanation:
Number 4=2:2:1
For five days, Diego recorded the lengths, in minutes, of his walk to school. The mean for his data is 11 minutes. Determine which data set below is Diego’s, and prove that your choice is correct.
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Data Set A: 9, 11, 13, 10, 12
Data Set B: 8, 10, 12, 14, 16
Data Set C: 10, 10, 10, 10, 10
Data Set D: 11, 11, 11, 11, 11
To find the mean, we sum up all the values in each data set and divide by the number of values:
Data Set A: (9 + 11 + 13 + 10 + 12) / 5 = 11 minutes
Data Set B: (8 + 10 + 12 + 14 + 16) / 5 = 12 minutes
Data Set C: (10 + 10 + 10 + 10 + 10) / 5 = 10 minutes
Data Set D: (11 + 11 + 11 + 11 + 11) / 5 = 11 minutes
Comparing the mean of each data set to 11 minutes, we can see that only Data Set A and Data Set D have a mean of 11 minutes. However, to prove that our choice is correct, we need to analyze the individual values in the data set.
In Data Set A, we can observe that the values are relatively close to 11 minutes, with some values slightly above and below. This variation suggests a realistic scenario where Diego's walk to school might take slightly different amounts of time each day.
In Data Set D, all the values are exactly 11 minutes. While it is not impossible for Diego's walk to consistently take exactly 11 minutes each day, it seems less likely than having some variation in the durations.
Based on these observations, we can conclude that the most plausible data set for Diego is:
Data Set A: 9, 11, 13, 10, 12
This data set has a mean of 11 minutes and exhibits a realistic variation in walk durations, making it the most likely choice for Diego's recorded lengths.
Find the equation of a line in the slope-intercept form given the following information.
Answers
Answer:
Step-by-step explanation:
7x2=y
y=14
C = y int
M = slope
Sub values…
y=7x-2
PLEASE HELP ME
Find the slope and y-intercept of the following graph.
Answers
Answer:
y-intercept: 3
slope: 2/3
Step-by-step explanation:
The y-intercept is the point that crosses the y-axis. In this case the y-intercept is 3.
When figuring out the slope, there are some methods. I am going to be using the rise over run method. Start at one point and go up and over untill it hits another point on a graph. Start at (-3,1). Go up 4. Go over 6. You will land on the point (3,5). Your answer will be 4/6. Simplify 4/6 and then you will get 2/3.
!! NEEDED ASAP
For Function A: What is the slope/rate of change for the interval of f(0) to f(4)? _____
; for f(4) to f(8)? _____
BLANK OPTIONS FOR FUNCTION A: 1/4, 4, -4, -1/4
For Function B: What is the slope/rate of change for the interval of f(0) to f(4)? ____
; for f(4) to f(8)? ______
BLANK OPTIONS FOR FUNCTION B: 8, 4, 2, 1/2
FINAL QUESTION:
____ as the larger slope.
____ has the larger y-intercept.
BLANK OPTIONS FOR FINAL QUESTION: Function A, Function B.
Answers
Answer: 1/4
Function B
Answer: 2
Function B has the larger slope
Function B has the larger y-intercept
Please help me I will give brainliest
Note I just clicked a random answer so I don't know if it's right
Answers
What is the distance, in units, between the two points?
Answers
Answer: 8units by 5units
Step-by-step explanation: I started with the length counted from the point (-3,4) counting the number of squares that go to point (3,-4) giving me 8squares/units
then the width I used the same method getting 5squares/units
Answer: 10 units
The points are (-3,4) and (3,-4)
We can use the distance formula for this, which is
d=√((x2-x1)²+(y2-y1)²)
So we can assign
X1 as -3
Y1 as 4
X2 as 3
Y2 as -4
Substitute these in the formula
d=√(3-(-3))²+((-4)-4)²
d=√(6)²+(-8)²
d=√(36+64)
d=√100
d= 10
Answer this please, get it done by today… brainliest will be given to the helpful pro person.
Answers
Answer:
1. 1/5 x 8 then multiply by 4 then multiply by the sides
please help what is the answer ill give 25 points please
Answers
Answer: 73
Step-by-step explanation:
22 + 51 = 73
Answer:
73
Step-by-step explanation:
he scatter plot and line of best fit below show the length of 14 people's femur (the long leg bone in the thigh) and their height in centimeters. Based on the line of best fit, what would be the predicted femur length for someone with a height of 229 cm?
Answers
helpppppppppppppppppppp
Answers
Answer:
What is it that you need help with?
Step-by-step explanation:
Answer:
In the file, hoped I helped. And hope you get 100%!
P.S. I kinda forgot what the orange one's called, it's like distribution law or distributive property, I dunno which one is right.
f(x) is a cubic function whose roots are 2, 3, and 4. Find f(x) and also find the value of f(2).
Please give an explanation so I know how to do it next time :) Thank you!
Answers
33−22−9−4=0
3
x
3
−
2
x
2
−
9
x
−
4
=
0
On inspection, =−1
x
=
−
1
is found to satisfy the equation. Now the cubic polynomial can be factorized.
33−22−9−4=0
3
x
3
−
2
x
2
−
9
x
−
4
=
0
⟹(+1)(32−5−4)=0
⟹
(
x
+
1
)
(
3
x
2
−
5
x
−
4
)
=
0
One root is −1
−
1
. The rest at the roots of the following quadratic equation.
32−5−4=0
3
x
2
−
5
x
−
4
=
0
⟹=−(−5)±(−5)2−4×3×(−4)‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾√2×3
⟹
x
=
−
(
−
5
)
±
(
−
5
)
2
−
4
×
3
×
(
−
4
)
2
×
3
⟹=5±25+48‾‾‾‾‾‾‾‾√6
⟹
x
=
5
±
25
+
48
6
⟹=5±73‾‾‾√6
⟹
x
=
5
±
73
6
⟹∈{−1,5−73‾‾‾√6,5+73‾‾‾√6}
⟹
x
∈
{
−
1
,
5
−
73
6
,
5
+
73
6
}
Some cubic equations to be solved by students are deliberately made to have one simple root which can be guessed.
Adoes thi involve coding?
Step-by-step explanation:
Determine and prove which lines are
parallel
I’ll give Brainliest. Due Soon.
Answers
Answer:
line b, c are parallel line hope it helps
Answer:
lines t and s are parallel because 108=108
line is not parallel to lines a and b because 82 is not equal to 72
lines a and b are parallel because 72 is supplementary to 108
Step-by-step explanation:
4.5 multiplied by x = 81. what represents x?
Answers
18 represents x
10x4.5=45
8x4.5=36
45+36=81
Answer is 18
Jorge invested a total of $5000. He invested some of his money at 4% and the rest at 7%. If the total return at the end of the year was $320, how much was invested at each rate?
Answers
Step-by-step explanation:
Let's solve this problem using a system of equations.
Let's assume that Jorge invested x dollars at 4% interest and (5000 - x) dollars at 7% interest.
The interest earned from the 4% investment can be calculated as (4/100) * x.
The interest earned from the 7% investment can be calculated as (7/100) * (5000 - x).
According to the problem, the total return at the end of the year was $320. Therefore, we can set up the following equation:
(4/100) * x + (7/100) * (5000 - x) = 320
Simplifying and solving for x:
(4/100) * x + (7/100) * 5000 - (7/100) * x = 320
0.04x + 0.07(5000 - x) = 320
0.04x + 350 - 0.07x = 320
-0.03x = -30
x = -30 / -0.03
x = 1000
Jorge invested $1000 at 4% interest and the remaining amount, $5000 - $1000 = $4000, at 7% interest.
Therefore, Jorge invested $1000 at 4% and $4000 at 7%.
The table shows conversions of common units of length.
Unit of Length
Customary System Units
Metric System Units
1 inch
2.54 centimeters
1 foot
0.3048 meters
1 mile
1.61 kilometers
About how many inches are equivalent to 3 meters? Round the number(s) needed in the table to the nearest tenth to find the approximate answer
A.10 inches
B.75 inches
C.100 inches
D.120 inches
Answers
Because one meter is approximately 40 and 40x3=120!!
Hope this helps you out!!
whats the difference between mars' highest mountain and its deepest ocean canyon?
Answers
Answer:
Hope dis helps :)
Which is the best interpretation of the solution set for the compound inequality? 3(2x + 1) > 21 or 4x + 3 4 D. all real numbers
Answers
D
I just had the same test
Answer:
D
Step-by-step explanation:
can someone help? im not sure about this questons and its getting me so stressed out :( pls help :(
Answers
Answer:
Lets start:
Picture 1:-
1. Length of EH= 12cm
2. Angle G= 55 degrees
Picture 2:-
1. Scale factor= 1/4 (I'm not sure about this but this is what I think it is ;-;)
2. Value of y= 28 cm
Picture 3:- [Picture 3 is cropped so I'm guessing its the last one so imma answer those questions :D]
1. Scale factor= 5 (Again I'm not sure but its my best guess)
2. Value of z= 5
Picture 4:-
1. Scale factor= 4 (I'm pretty sure you know that my scale factor answers are guesses so yea ;-;)
2. Value of b= 12
Step-by-step explanation:
Since i can't add links in answers you can watch:
Similar figures
-By The Organic Chemistry Tutor
It'll help you understand how we solve these questions
Well anyways i hope this clears your concepts :D
Answer:
Step-by-step explanation:
EH is 12cm as the shape has been enlarged by scale factor two (all sides have been multiplied by 2).
Angle G remains the same at 55 degrees.
PART A
Scale factor for the triangle = 1/4
Value of y = 28cm
3) z = 5, scale factor = 5
SIMILAR RECTANGLES:
Scale factor = 4
Side b = 12cm
Hope these answers work out for you
Write an algebraic expression for the given word expression:
A number b decreased by itself
Answers
where b=2
24-24=0
64068 - X divided by 74 What is the SMALLEST possible answer?
Answers
Answer:
23421
Step-by-step explanation
x = 32094 divided by 74 = 12.0932 so 64068 - 12.0932 = 64055.9068
good luck
Answer:
Already have the answer, but its 23421.
Step-by-step explanation:
pleeeeeaaase heeeeelllpppppp meeeeeeee
Answers
Answer: C. 5x<12
Step-by-step explanation: For this equation we will assume that x is the number of minutes it takes Todd to swim one lap. To write an equality for this, we want the total amount of time it takes to be less than twelve minutes, so 5*x must be less than 12.To write an equality for this, we will start with 5*x, the use the less thansymbol < (not less than or equal to) which will give us our answer of 5x<12.
Answer:
5x<12
Step-by-step explanation:
For this equation we will assume that x is the number of minutes it takes Todd to swim one lap.
To write an equality for this, we want the total amount of time it takes to be less than twelve minutes, so 5*x must be less than 12.
To write an equality for this, we will start with 5*x, the use the less than symbol < (not less than or equal to) which will give us our answer of 5x<12.
A camper lights an oil lantern at 12 noon and lets it burn continuously. Once the lantern is lit, the lantern burns oil at a constant rate each hour. At 2 p.m., the amount of oil left in
the lantern is 63 ounces. At 5 p.m., the amount of oil left in the lantern is 61 ounces.
Based on the average rate of oil burning per hour, how much oil, in ounces, was in the lantern at 12 noon? Show your work.
Answers
Answer:
64.33 ounces
Step-by-step explanation: The rate at which the oil burns.
1 hour = 2/3 ounce
At 2 pm = 63 ounces
At 5 pm = 61 ounces
The amount of oil at 12 noon is 64.33 ounces.
Define Interquartile Range.
I will check for plagiarism.
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Hope this helps!