Answers
Answer:
The answer to the question is A
Related Questions
PLEASE HELPP!!!!!!!!!
Answers
The number of tickets that Sam can buy, given the amount he has to spend and the price of admission, is 36 tickets.
The rate of change is $ 0.75 per attraction.
The table on the number of tickets and total cost is:
Number of tickets 1 5 10 15
Total cost $ 10. 75 $ 13.75 $17.50 $ 21. 25
How to find the cost of tickets ?The number of tickets that Sam can buy when he has $ 37 is:
= (Amount to spend - Cost of admission ) / Cost per ticket
= ( 37 - 10 ) / 0.75
= 36 tickets
The rate of change is therefore the $ 0.75 charged per ticket per event.
The number of tickets for $ 10. 75 is:
= ( Total cost - Cost of admission ) / cost per ticket
= ( 10. 75 - 10 ) / 0.75
= 1 ticket
The cost of 5 tickets :
= ( Number of tickets x cost per ticket) + cost of admission
= (5 x 0. 75 ) + 10
= $ 13. 75
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At 4:00am the outside temperature was -28 by 4:00pm.it had risen 38 degrees what was the temperature at 4:00pm
Answers
Answer:
10
Step-by-step explanation:
\(8 + 8 < 17 > \)
es la repuesta
8×2 8
Answers
Answer:
Step-by-step explanation:
Insurance companies are interested in knowing the population percent of drivers who always buckle up before riding in a car. They randomly survey 401 drivers and find that 294 claim to always buckle up. Construct a 90% confidence interval for the population proportion that claim to always buckle up. Use interval notation, for example, [1,5].
Answers
Answer:
[0.6969, 0.7695]
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of \(\pi\), and a confidence level of \(1-\alpha\), we have the following confidence interval of proportions.
\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)
In which
z is the z-score that has a p-value of \(1 - \frac{\alpha}{2}\).
They randomly survey 401 drivers and find that 294 claim to always buckle up.
This means that \(n = 401, \pi = \frac{294}{401} = 0.7332.
90% confidence level
So \(\alpha = 0.1\), z is the value of Z that has a p-value of \(1 - \frac{0.1}{2} = 0.95\), so \(Z = 1.645\).
The lower limit of this interval is:
\(\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.7332 - 1.645\sqrt{\frac{0.7332*0.2668}{401}} = 0.6969\)
The upper limit of this interval is:
\(\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.7332 + 1.645\sqrt{\frac{0.7332*0.2668}{401}} = 0.7695\)
The 90% confidence interval for the population proportion that claim to always buckle up is [0.6969, 0.7695]
Seventy-five 6th- grade students chose to watch a movie on the last day of school. This is 25% of the 6th-grade class. How many total students are in the 6th grade?
Answers
25% = 75/x
To solve for x, we can cross-multiply:
0.25x = 75
Then, we can divide both sides by 0.25:
x = 300
Therefore, there are 300 6th-grade students in total.
All of the following ordered pairs satisfy the function rule y=-3x+2 except
(1, -1)
(4,-10)
(-2,8)
(-3, 12)
Answers
Answer:
The ordered pair (-3, 12) DOES NOT satisfy the equation.
Step-by-step explanation:
Given the function
\(y=-3x+2\)
Let us substitute all the values to check which points satisfy the function.
FOR (1, -1)
y = -3x+2
substitute x = 1, y = -1
-1 = -3(1) + 2
-1 = -3+2
-1 = -1
TRUE!
Thus, the ordered pair (1, -1) satisfies the equation.
FOR (4, -10)
y = -3x+2
substitute x = 4, y = -10
-10 = -3(4) + 2
-10 = -12+2
-10 = -10
TRUE!
Thus, the ordered pair (4, -10) satisfies the equation.
FOR (-2, 8)
y = -3x+2
substitute x = -2, y = 8
8 = -3(-2) + 2
8 = 6 + 2
8 = 8
TRUE!
Thus, the ordered pair (-2, 8) satisfies the equation.
FOR (-3, 12)
y = -3x+2
substitute x = -3, y = 12
12 = -3(-3) + 2
12 = 9+2
12 = 11
L.H.S ≠ R.H.S
FALSE!
Thus, the ordered pair (-3, 12) DOES NOT satisfy the equation.
Therefore, the ordered pair (-3, 12) DOES NOT satisfy the equation.
A certain drug is made from only two ingredients: compound A and compound B. There are 3 milliliters of compound A used for every 5 milliliters of compound
B. If a chemist wants to make 728 milliliters of the drug, how many milliliters of compound A are needed?
? milliliters of compound A
Answers
In order to create 728 millilitres of the medication, 273 millilitres of component A are required.
What do you mean by compound?A compound in chemistry is a material comprised of two or more separate chemical elements mixed together in a certain proportion. Chemical connections that are challenging to break are created when the elements interact with one another.
Compound A:Compound B ratio in the medication is 3:5. In other words, there are 3 millilitres of compound A and 5 millilitres of compound B for every 3+5=8 millilitres of the medicine.
We may set up a percentage using the ratio of compound A to the total volume of the medicine to determine how much compound A is required to make 728 millilitres of the drug:
3 ml x 3 ml x 3 ml
-------- = ----------
728 ml total, 8 ml overall
If we cross-multiply, we obtain:
8(x) = 3(728)
To find x, we use the formula x = 3(728)/8 = 273
In order to create 728 millilitres of the medication, 273 millilitres of component A are required.
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273 milliliters of compound A are needed to make 728 milliliters of the drug.
What are proportions?
In mathematics, a proportion is a statement that two ratios are equal. It expresses the relationship between two or more quantities that are directly proportional to each other. A proportion can be represented as an equation of the form:
a/b = c/d
To determine the amount of compound A needed to make 728 milliliters of the drug, we need to use the given ratio of 3 milliliters of compound A to 5 milliliters of compound B.
Let's start by finding the ratio of compound A to the total amount of ingredients (A+B) in the drug:
3 : (3+5) or 3:8
This means that for every 8 milliliters of the drug, 3 milliliters of compound A are used.
To find out how many milliliters of compound A are needed for 728 milliliters of the drug, we can set up a proportion:
3/8 = x/728
where x represents the amount of compound A needed.
To solve for x, we can cross-multiply:
8x = 3*728
8x = 2184
x = 273
Therefore, 273 milliliters of compound A are needed to make 728 milliliters of the drug.
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PLEASE HELP AHH TYY 1. Manzanita berries look like little apples. Manzanita juice is sold in cylindrical cans. A typical can of manzanita juice has a height of 4.9 inches and diameter of 2.6 inches. Find the surface area of the can. Use 3.14 for π. Use the formula for surface area of a cylinder, А 2πг² + 2лrh.
r= radius h=height.
Answers
50.62 square inches is the surface area of a cylinder
What is Three dimensional shape?a three dimensional shape can be defined as a solid figure or an object or shape that has three dimensions—length, width, and height.
Given that Manzanita berries look like little apples. Manzanita juice is sold in cylindrical cans.
A typical can of manzanita juice has a height of 4.9 inches and diameter of 2.6 inches.
We need to find the surface area of the can.
Height of can = 4.9 inches
Diameter =2.6 inches
Radius=2.6/2=1.3
Surface area=2πг² + 2лrh.
=2πг(r+h)
=2×3.14×1.3×(1.3+4.9)
=8.164(6.2)
=50.62 square inches
Hence, 50.62 square inches is the surface area of a cylinder
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Nine hundred ninety two hundred thousandths wrote in decimal form
Answers
Answer:
I think the answer is 9.920 please be careful with your answer I think it 9.920 because it says nine hundred and ninety two thousands so therefor the decimal need to be in between 9 and 9 I hope you get this correct!
step-by-step explanation:
For these questions find the probability of drawing the given cards at random from a standard 52-card deck under each condition: (a) with replacement and (b) without replacement. Write your answers as fractions in simplest form.
2) A club, then a spade
a. With replacement
b. Without replacement
3) An ace, then a queen
a. With replacement
b. Without replacement
Answers
Answer:
2
a) 6.37%
b) 6.25%
3
a) 0.60 %
b) 0.59 %
Step-by-step explanation:
2 )
a) With replacement
Probability of extracting a club is 13/52
Probability of extracting a spade is 13/51
13/52 * 13/51
= 6.37 %
b) Without replacement
13/52 * 13/52
= 6.25 %
3) With replacement
Probability of extracting a ace is 4/52
Probability of extracting a queen is 4/51
4/52 * 4/51
= 0.60 %
b) Without replacement
4/52 * 4/52
= 0.59 %
how many hundreds are there in 4376
Answers
Answer:
43 hundreds
Step-by-step explanation:
There are 40 hundreds in 4000.
4000/100=40.
Afterwards, you would add the other 3 hundred to the answer which would make the answer 43 since 300/100 is equal to 3, and 40 + 3 = 43
The remainder of the 76 left would be 7 tens and 6 ones also if you wanted to know.
10 one hundreds = 1000
3 one hundreds = 300
Which expression is equivalent to (3+4i)(2−3i)
Answers
The expression that is equivalent to the given value would be = 18-i . That is option C.
What is an equivalent expression?An equivalent expression is defined as the type of expression that is similar to a given value when simplified.
The given expression = ( 3 + 4i) ( 2 - 3i)
Expand the given expression by removing the brackets as follows:
= =2(3+4i)−3i(3+4i)
=(6+8i)−(9i−12)
= (6+12)+i(8−9)
=18−i.
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blank plus 1/5 equals to 1/2
Answers
Answer: 3/10
Step-by-step explanation:
To get the value for the blank, treat it as a variable. Let’s say this blank is x.
x + 1/5 = 1/2
Subtract 1/5 from both sides:
x = 1/2 – 1/5
x = 3/10
The blank is 3/10.
Hope this helps!
Ms. Guzman asked each of her homeroom students’ “What did you make on your Unit 6 science test”? She graphed the results on the line plot. Which is the best description of the data? (AKS 42) The range is 35, there is a peak at 90, and there are no outliers or gaps. The mode is 90, the data is skewed to the right, and there is a gap at 70 & 75. The mean is about 90, gaps at 70-75, mode at 85 and 100, and the data is skewed to the left. The median is 90, the distribution is asymmetrical, and there are gaps from 70- 75, and an outlier at 65. The median is 90, the distribution is asymmetrical, and there are gaps at 60, 70-75, and an outlier at 65.https://d3rqz33hmpm7kb.cloudfront.net/2021-03-08/5f50fc4b574c12225922587b/604618b510ed2dcf941eee43_rich-text-file-2021-03-08T12-2-46-770Z.imagepng
Answers
A company that sells paper has a tiered pricing model based on how much paper you buy. If you buy less than 10 reams, they charge you $7 per ream and a shipping cost of $8. If you buy 10 or more reams but less than 20 reams, they charge you $6 per ream and a shipping cost of $16. If you buy 20 or more reams, they charge you $6 per ream and shipping is free.
a. Write a function that models the price in terms of the number of reams bought.
b. What is the domain of the function?
c. What is the range of the function?
d. How much will it cost to buy 25 reams of paper?
f. How much paper can you buy for $60?
Answers
The function can be defined as price = 6x
It will cost $150 to buy 25 reams of paper.
How to explain the functionThe domain of the function is all non-negative real numbers, since the number of reams bought cannot be negative.
The range of the function is all non-negative real numbers, since the price cannot be negative.
Fir 25 items, price = 6(25) = $150
It will cost $150 to buy 25 reams of paper.
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True or false: is x=4 a solution to |x+5| =-9?. Explain
Answers
Answer:
No
Step-by-step explanation:
if u subsitute x for 4, 4+5 would equal positive 9.
State the range of the relation shown
Answers
Answer:
{-3, -1, 0, 1, 2}
Step-by-step explanation:
Range is the y values of the relation
{-3, -1, 0, 1, 2}
d. A quantity increases by 25% each year for 3 years. How much is the combined percentage growth p over the three-year period?
Answers
When a quantity increases by 25%, the new quantity becomes 100% + 25% = 125% of the original quantity.
After the first year, the quantity has increased to 125% of its original value. After the second year, it increases an additional 25%, making the new value 125% + (25% of 125%) = 156.25% of the original value. Finally, after the third year, it increases by another 25%, making the new value 156.25% + (25% of 156.25%) = 195.3125% of the original value.
So the quantity has increased by 195.3125% - 100% = 95.3125% over the three-year period. Therefore, the combined percentage growth p over the three-year period is 95.3125%.
when creating a scatterplot, always put the categorical variable on the vertical axis. always put the categorical variable on the horizontal axis. if you have an explanatory variable, put it on the horizontal axis. if you have a response variable, put it on the horizontal axis.
Answers
When creating a scatterplot, it is important to carefully consider which variable to place on the vertical and horizontal axes.
The vertical axis is commonly used to represent the response or dependent variable, while the horizontal axis is used for the explanatory or independent variable.
However, when dealing with a categorical variable, there is no inherent order or numerical relationship between the categories. Thus, it does not make sense to use either axis as a response or explanatory variable. In this case, the categorical variable should be placed on either axis based on what makes the most sense for the data being displayed.
If there is an explanatory variable and a response variable, the explanatory variable should be placed on the horizontal axis and the response variable on the vertical axis. This is because the explanatory variable is usually the variable that is being manipulated or controlled, while the response variable is the one that is being measured or observed.
Overall, the placement of variables on the axes of a scatterplot should be based on the nature of the data being displayed and the relationship between the variables being studied.
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explain the types of frequency distribution in statistics
Answers
The two types of frequency distributions are Discrete Frequency Distribution and Grouped Frequency Distribution
What are the types of distribution?The two types of frequency distributions are;
Discrete Frequency Distribution:Grouped Frequency DistributionWhen the data consists of discrete, separate values, this sort of distribution is used. It displays the frequency or number of occurrences of each value.
The data is often expressed in a table with two columns: one for distinct values and another for the frequencies of those values.
This distribution is utilized when the data is continuous and has a wide range of values. It entails categorizing the data into intervals or classes and then calculating the frequency of values that fall within each interval.
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what is Bethany's score on the test if she answered 23 out of 30 right?
part:
whole:
percent:
Answers
Answer: 76.67%
Step-by-step explanation:
Keshawn thinks that the graph of a function f(x) and its inverse f -1 (x) will always intersect. Give a counterexample to disprove his statement
Answers
In the 2012 Olympics a U.S. athlete Nathan Adrian finished the 100-meter freestyle swim in 47.52 seconds. If nathan swam the same pace in a regular 25-meter pool what would his time have been per lap?
Answers
At the same rate as his 100-meter freestyle swim in the 2012 Olympics, Nathan Adrian could have completed one loop of a 25-meter pool in 11.88 seconds.
To solve this problem
The idea of proportionality can be applied. The time it would take Nathan Adrian to complete one lap in a 25-meter pool is known to be 47.52 seconds for the 100-meter freestyle. Since the tempo is constant while the distance varies, we can establish a ratio:
100 meters / 47.52 seconds = 25 meters / x seconds
where x is the unknown time for one lap in the 25-meter pool.
To solve for x, we can cross-multiply:
100 meters * x seconds = 47.52 seconds * 25 meters
100x = 1188
Dividing both sides by 100, we get:
x = 11.88 seconds
Therefore, at the same rate as his 100-meter freestyle swim in the 2012 Olympics, Nathan Adrian could have completed one loop of a 25-meter pool in 11.88 seconds.
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Irene y Alejandro tienen 73 libros irene tiene el doble que Alejandro mas 1 cuantos libros tiene cada uno?
Answers
Irene has 49 Books, and Alejandro has 24 books.
Let's assume that Irene has x books, and Alejandro has y books. According to the given information, we can form the following equations:
1. Irene has twice as many books as Alejandro plus 1:
x = 2y + 1
2. The total number of books between Irene and Alejandro is 73:
x + y = 73
We can now solve this system of equations to find the values of x and y.
Substituting the value of x from equation (1) into equation (2), we have:
(2y + 1) + y = 73
3y + 1 = 73
3y = 72
y = 24
Now, we can substitute the value of y into equation (1) to find x:
x = 2(24) + 1
x = 49
Therefore, Irene has 49 books, and Alejandro has 24 books.
To verify our solution, we can check if the sum of their books equals 73:
49 + 24 = 7
So, our solution is correct.
In conclusion, Irene has 49 books, and Alejandro has 24 books.
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Which ratios are less than 8 to 10?
Answers
Answer:
3:5 and 50:100
that should be the answer
Find the sum: -5 + 13 =
Answers
Answer:
it is 8
Step-by-step explanation:
I'm just smart when it comes to maths
Answer:
answer =+8
Step-by-step explanation:
or,-5+13
or,+8
Vocabulary How do you know if a situation represents a proportional relationship?
Answers
Answer:
write them as fractions and then reduce them. If the reduced fractions are the same, your ratios are proportional.
idk what to do I need help
Answers
Answer:
x = 8
Step-by-step explanation:
There are two ways of answering this:
1.)Supplementary Angles/Linear pair:
(5x- 15) + (20x - 5) = 180°
25x - 20 = 180
25x - 20 +20 = 180 + 20
25x = 200
x = 8
2.) Vertical angles theorem:
(5x - 15) = (3x + 1)
5x - 3x -15 + 15 = 3x - 3x + 1 +15
2x = 16
x = 8
Determine if true:
2x6-3=10
Answers
Answer:
False
Step-by-step explanation:
2x6=12
2x6=1212-3=9
Hence, the equation is false.
What is the value of x in the following equation?√2x=4
Answers
sidessidesGiven equation is,
\(\sqrt[]{2}x=4\)Now, solving the given equation,
\(\begin{gathered} \frac{\sqrt[]{2}}{\sqrt[]{2}}x=\frac{4}{\sqrt[]{2}} \\ x=\frac{4}{\sqrt[]{2}}.\frac{\sqrt[]{2}}{\sqrt[]{2}} \\ x=\frac{4\sqrt[]{2}}{2}\lbrack\sqrt[]{2\text{ }\cdot}\sqrt[]{2}=2\rbrack \\ x=2\sqrt[]{2} \end{gathered}\)So, the required solution is,
\(x=2\sqrt[]{2}\)Squaring both side we get,
\(\begin{gathered} x^2=(2\sqrt[]{2})^2 \\ x^2=4\cdot2 \\ x^2=8 \end{gathered}\)