The average of three numbers is 15. Two numbers are 7 and 10. What is the third number?

Answers

Answer 1

The Answer is 28

Step-by-step explanation:


Related Questions

Which integer has the least value (-17,-7,-12,2)

Answers

-17 because if there is a negative sign in front the greater the number the less value in has due to the negative sign

PLEASE ANSWER ASAP!! 57 POINTS!!! BRAINLY!) there were 80 teenagers in line for tickets to a concert. Forty percent were boys. Twenty-six girls wanted $10 tickets. The rest wanted $15 tickets. The results are shown below. $10 $15 Total Вoys ? 18 Girls 26 22 ? Total 40 40 80 How many of the teenagers in line are boys?

Answers

32 boys total. The way I found this was that it says 40 people total bought 10 dollar tickets and that 26 of those people were girls, so if you subtract 26 from 40 you get 14. Then you add the 14 to the 18 boys we know got 15 dollar tickets and you’ll find 32 boys total.
If there are 80 teenagers in line and 40% are boys the 80 * .4 = 32 boys in line.

The other boxes are easy to fill in after that.

Total Girls is 48

and

$10 boys is 14

Good luck with your studies!!

After trick-or-treating, Juan counted his candy. He collected 25 pieces of candy and noticed that 2/5 of the candy was chocolate. How many pieces of Juan’s candy were chocolate?

Answers

Answer:

10 pieces of Juan's candy was chocolate

Step-by-step explanation:

to find 2/5 of something, you have to multiply.

of means to multiply.

So then you multiply 2/5 by 25.

[tex]\frac{2}{5}*\frac{25}{1} =\frac{10}{1} =10[/tex]

Patrick added 1/4 teaspoons of cayenne pepper and 1/3 teaspoons of black pepper to his enchilada sauce. What is the total amount of the two spices that Patrick added to his sauce?​

Answers

Answer:

7/12

Step-by-step explanation:

You first make a common denominator. You make both the denominators 12, then make one numerator 3 and another numerator 4. Now you have an easy equation; 3/12 + 4/12, which equals to 7/12

what is 169 +169/23? give answer

Answers

Answer:

4056/23

Step-by-step explanation:

[tex]\begin{aligned}169+\dfrac{169}{23} & =\dfrac{169}{1}+\dfrac{169}{23}\\\\ & =\dfrac{169\times 23}{1\times 23}+\dfrac{169}{23}\\\\ & =\dfrac{3887}{23}+\dfrac{169}{23}\\\\ & =\dfrac{3887+169}{23}\\\\ & =\dfrac{4056}{23}\end{aligned}[/tex]

What is the volume of the right rectangular prism?

A prism has a length of 10 centimeters, height of 3 centimeters, and width of 8 centimeters.
21 Centimeters cubed
42 Centimeters cubed
83 Centimeters cubed
240 Centimeters cubed

Answers

Answer: D: 240 Centimeters cubed

Step-by-step explanation:

Volume = LxWxH

Volume = 10 x 8 x 3

Volume = 240cm³

Your answer is D: 240 Centimeters cubed


A group of friends went to Starbucks and
ordered 2 muffins and 3 cups of coffee for $22.35.
In the same coffee shop, another group of friends
ordered 4 muffins and 3 cups of coffee for $32.85.
Algebraically determine the price of one muffin and
one cup of coffee.

Answers

Answer:

1 muffin is 5.25 and 1 cup of coffee is 3.95

Step-by-step explanation:

32.85 - 22.35 is 10.5. 10.5 divided by 2 is 5.25 that is the cost of 1 muffin. 22.35 - 10.5 is 11.85. 11.85 divided by 3 is 3.95.

Please answer the following questions correctly.

Answers

Answer:

(x_4)^2+(y+1)^2=81

Step-by-step explanation:

you change the signs of the x and y co efficient. The general formula is (a,-b) (x_a)^2+(y+b)^2=r^2

Can someone explain how I would find the value of y in the following equation? I know the answer, I just don’t understand how to do it. Giving Brainliest, please help!

y = 157y/38 - 3,321.485

Answers

Answer:

The answer is, y = 1060.64

Step-by-step explanation:

First, you want to multiply both sides by 38, which gives you

38y = 157y -126216.

Then you want to rearrange:

119y = 126216

then you want to divide by 119, which gives you y=126216/119, which is 1060.64

I'll be expecting my reward :)

Henry owns a small business selling clothing. He knows that in the last week 70 customers paid cash, 20 customers used a debit card, and 22 customers used a credit card.

Based on these results, express the probability that the next customer will pay with something other than a debit card as a percent to the nearest whole number

Answers

Answer:

80%

Step-by-step explanation:

it’s 82% but rounded its 80

What do 32x4x3x2÷5 equal 20 points and brainliest if right.

Answers

Answer:

153.6

Step-by-step explanation:

Answer:

153.6

Step-by-step explanation:

32x4=128

128x3=384

384x2=768

768/5=153.6

The cost to rent a condominium at the beach is $1,500 per week. If two people share the cost, they each have to pay $750. Explain why the relationship between the cost per person varies inversely with the number of persons sharing the cost. Then write an inverse variation function that can be used to calculate the cost per person, c, of p persons sharing the rental fee.

Answers

Step-by-step explanation:

c = cost per person

p = number of people

The cost per person is 1500/p, where 

is the number of people. A larger p creates a smaller value of c since they are INVERSELY RELATED.

I believe the inverse variation function is

c = 1500 × 1/p

make sure to ask if you need anything else. :)

reflect (7,4) across the x-axis then reflect the result across the y-axis what are the coordinates of the final point

Answers

The coordinates of the final point after the two reflections is (-7, -4)

How to reflect a point across an axis?

For a point (x, y), a reflection across the x-axis gives the point (x, -y), while for a point (x, y) a reflection across the y-axis gives (-x, y).

In this case, we have the point (7, 4), first we reflect across the x-axis, so we get the point (-7, 4).

Now we reflect across the y-axis, so the sign of the y-component changes, and we get (-7, -4)

So the coordinates of the final point after the two reflections is (-7, -4).

If you want to learn more about reflections, you can read:

https://brainly.com/question/4289712

I NEED HELP FAST PLEASE HELP ME ​

Answers

Answer:

16, 0, 64

Step-by-step explanation:

Check out the attached photo

need help on this question

Answers

Answer:

3/7

Step-by-step explanation:

This is because you need to count the tick marks to 1.

That should be 7.

Then you count to the red dot.

That should be 3.

3/7

Answer: 3/7

Step-by-step explanation:

There are 7 segments that separates 1 from 0, therefore our denominator of the fraction is 7.

The red dot is on the third tick, making our numerator 3.

Our answer is 3/7, or [tex]\frac{3}{7}[/tex]

The median number of visitors to a local zoo each day is 893. A sample median of 1,005 visitors would be most likely to occur for which sample size? n = 20 n=75 n = 300 n 500 n=1,000​

Answers

A sample median of 1,005 visitors would be most likely to occur for the sample size given by: Option A: 20

What does median behave like for large sample?

As the value of n (the sample size) grows larger, the sampling distribution tends to being normal. For an approximate normal distribution, its mean, median, and mode all are approx coincident. And as the sample size increases, the sample mean tends to being the population mean as per the weak law of large numbers. For n > 30, we can approximate it using normal distribution usually.

We're given that:

Population median (the real median of the number of visitors to the zoo) = 893We want to choose value of n from 20, 75,, 300, 500, 1000 for which the sample median would be 1005.

So, as we know, as the sample size increases, the sample mean and sample median and sample mode, all will tend to the population mean, median and mode (assuming population is large enough that they're all same).

Thus, the smaller the sample size, the more likely it is for holding 1005 as sample median instead of approx 893.

So, size 20 is most likely to have that median as it is the smallest sample size given.

Thus, a sample median of 1,005 visitors would be most likely to occur for the sample size given by: Option A: 20

Learn  more about weak law of large numbers here:

https://brainly.com/question/9061041

#SPJ1

A rectangular prism has a length of 4m, a height of 11m, and a width of 17m. What is its volume, in cubic m?

Answers

Answer:

748m³

Step-by-step explanation:

Hello!

The volume of a rectangular prism is determined by the formula [tex]l * w * h[/tex]. To find the volume is to find how much space the object takes up in 3D. The formula is used to find the area of the base ( [tex]l * w\\[/tex] ), or the space taken on a 2D plane and multiplied by the height to give it 3 Dimensions.

Breakdown of [tex]l * w * h[/tex]:

[tex]l[/tex] is length[tex]w[/tex] is width[tex]h[/tex] is height

Find the Volume:

Use the formula and plug in values into the formula.

V = l * w * hV = 4 * 17 * 11748

Th units of length are m, and volume is the units cubed, so the units are m³.

The volume is 748m³

Answer:

748

Step-by-step explanation: V= W*H*L

17*11*4= 748m^3

Hoping to be named Salesperson of the Month, Kylie called the names from 9 1/12 pages of the phone book last week. This week, she called the people listed on another 5 7/12 pages of the same phone book. How many pages worth of people did Kylie call in all?

Write your answer as a fraction or as a whole or mixed number.

Answers

Answer:

14 2/3

filler filler filler

1. A smaller square piece of plywood was cut from a larger square piece. If opposite ends of the remaining plywood have measures 2x + 5 cm and 2x – 5 cm, what expression represents its area?

2. A shipping container has a shape of a rectangular prism. If the area of its base is 49x2 + 14x + 4 sq. ft. and its height is 7x – 2 ft., what expression can be used to represent its capacity?​

Answers

Answer:

Plywood1: x = width ; length = 2x

1) x (2x) = 4.5

2) 2x² - 4.5 = 0

a = 2 ; b = 0 ; c = -4.5

3) x = \frac{-b \pm\sqrt{b^2-4ac} }{2a} = \frac{0 \pm\sqrt{0-4(2)(-4.5)} }{2(2)}= \frac{\pm6}{4} = \boxed{\frac{3}{2}}x=

2a

−b±

b

2

−4ac

=

2(2)

0−4(2)(−4.5)

=

4

±6

=

2

3

Plywood2: x = width ; length = 2x-1.4

1) x (2x-1.4) = 16

2) 2x² -1.4x -16 = 0

a = 2 ; b = -1.4 ; c = -16

3) x = \frac{-b \pm\sqrt{b^2-4ac} }{2a}=\frac{1.4 \pm\sqrt{1.96-4(2)(-16)} } < br / > {2(2)}=\frac{1.4 \pm11.4 }{4}=\boxed{3.2}x=

2a

−b±

b

2

−4ac

=

<

1.4±

1.96−4(2)(−16)

br/>2(2)=

4

1.4±11.4

=

3.2

Plywood3: x = width ; length = 5-x

1) x (5-x) = 6

2) -x² +5x -6 = 0

a = -1 ; b = 5 ; c = -6

3) x = \frac{-b \pm\sqrt{b^2-4ac} }{2a}=\frac{-5 \pm\sqrt{25-4(-1)(-6)} }{2(-1)}=\frac{-5 \pm1}{-2}x=

2a

−b±

b

2

−4ac

=

2(−1)

−5±

25−4(−1)(−6)

=

−2

−5±1

\boxed{x_1=3}

x

1

=3

\boxed{x_2=2}

x

2

=2

BRAIN LESS ANSWER

please help asap tysm <3

Answers

Step-by-step explanation:

internet check ?

that's the fastest, and the same I had to do :

there are 2 pints in 1 quart.

in other words

1 pint = 0.5 quarts

therefore,

13 pints = 13×1 = 13×0.5 quarts = 6.5 quarts

so,

13 pt = 6 qt + 1 pt

Answer:

13 pt = 6 qt 1 pt

Step-by-step explanation:

1 qt = 2 pt

12 pt = 6 qt + 1 remaining pt.

Write the unit rate for each of the following

Answers

Answer:

1. $36/4 hours = $9per hour

2. 350miles/7hours = 50mile per hour

3. 1.60 / 20 = $0.08 per pen

80/180 simplified to its simplest form

Answers

4/9

hope it helps...!!!

Answer:

[tex] \frac{4}{9} [/tex]

Step-by-step explanation:

[tex] \frac{80 \div 10}{180 \div 10} = \frac{8 \div 2}{18 \div 2} = \frac{4}{9} [/tex]

Hope this help you out =)

3. The height in feet of a thrown football is modeled by the equation
f(t) = 6 + 30t – 16t?, where time t is measured in seconds.
a. What does the constant 6 mean in this situation?
b. What does the 30t mean in this situation?
c. How do you think the squared term - 16t2 affects the value of the function f?
What does this term reveal about the situation?

Answers

The expression 30t mean that the velocity of the football is 30, while the term 16t² makes the function to be quadratic.

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Given the equation:

f(t) = 6 + 30t – 16t²

Where f(t) is the height of the football after t seconds.

The constant 6 means the football was thrown from a height of 6 feet above the ground.

The expression 30t mean that the velocity of the football is 30, while the term 16t² makes the function to be quadratic.

Find out more on equation at: https://brainly.com/question/2972832

What is the first step in constructing an angle? Draw a horizontal ray. Connect the endpoint and the mark at the angle measure Make a mark at the number of degrees you want the angle to be. Place the center of the protractor on the endpoint of the ray, and line up the ray with the zero line of the protractor.​

Answers

The first step in constructing an angle by means of a protractor is; Draw a horizontal ray.

How to Construct an angle

The first step in constructing an angle by means of a protractor involves a sequence of ordered steps as follows;

Draw a horizontal ray.Place the center of the protractor on the endpoint of the ray, and line up the ray with the zero line of the protractor.Make a mark at the number of degrees you want the angle to be.Connect the endpoint and the mark at the angle measure

Read more on Angle construction;

https://brainly.com/question/8607612

If x=2,y=-1 then (2x^2 times y^3)^2

Answers

Answer:

64

Step-by-step explanation:

Answer:

225

Step-by-step explanation:

All you have to do is plug in the numbers, it will look like this

(2(2)^2 * -1^3)^2

It looks weird but trust me

Ok so first you have to mutiply 2*2 whitch is 4

(4^2 * -1^3)^2

now what is the 1 with the exponet of 3? It will stay at -1

(4^2 * -1) ^2

what is 4^2? it is the same a 4*4

whitch is 16

(16-1)^2

16-1?

(15)^2, same thing as 15*15

whitch is 225

makingn 255 your answer

A car company claimed that it improved the gas mileage of a particular model of car between 2011 and 2012. A consumer advocacy group obtains a random sample of 16 cars from 2011 and finds the average number of miles driven on exactly 25 gallons of gas in laboratory conditions is 574. 4 miles, with a standard deviation of 43. 1 miles. The consumer advocacy group also obtains a random sample of 24 cars from 2012 and finds the average number of miles driven on exactly 25 gallons of gas in laboratory

conditions is 604. 6 miles, with a standard deviation of 27. 8 miles. The 99% confidence interval for the difference in mean miles driven on 25 gallons of gas (2012 model – 2011 model) is (–3. 95, 64. 35).


Does this confidence interval support the company’s assertion that their gas mileage has increased?


a)Yes, we are 99% confident that the true mean difference in miles driven per 25 gallons is 30. 2 miles.


b)Yes, the fact that most of the values in the confidence interval are positive means that the true mean number of miles driven on 25 gallons is higher in 2012.


c)Yes, the 2012 sample mean of 604. 4 miles per 25 gallons is 30. 2 more miles than the 2011 sample mean of 574. 4, which is an increase of 1. 208 miles per gallon.


d)No, the confidence interval contains 0, so we are 99% confident that the true mean increase in number of miles driven on 25 gallons is 0.


e)No, the confidence interval contains 0, so 0 is a plausible value for the true mean increase in number of miles driven on 25 gallons. An increase of 0 would indicate the gas mileage has not increased

Answers

Using the interpretation of the confidence interval, it is found that the correct option is:

e) No, the confidence interval contains 0, so 0 is a plausible value for the true mean increase in number of miles driven on 25 gallons. An increase of 0 would indicate the gas mileage has not increased.

What is the interpretation of a x% confidence interval?

It means that we are x% confident that the population parameter(mean/proportion/standard deviation) is between a and b.

In this question, the 99% confidence interval for the increase is of (-3.95, 64.35). It contains 0 and negative values, hence those are plausible values, and this is not enough evidence that the mean has increased, hence option e is correct.

More can be learned about confidence intervals at https://brainly.com/question/25890103

Which is equivalent to 7/10?

Answers

14/20 , 21/30 ,28/40 & 35/50 all are equivalent ratio to 7 /10

What is the mode of the data set?

Math Test Scores
5 0 4
6 5 7 8
7 5 8
8 2 4 5 5 5 6 7 8 9
9 0 0 0 0 4 6 7 9
5 0 = 50

Answers

Answer:  90

Reason:

We have this stem-and-leaf plot

[tex]\begin{array}{r|l}\text{stem} & \text{leaf}\\\cline{1-2}5 \ & \ 0 \ 4\\6 \ & \ 5 \ 7 \ 8\\7 \ & \ 5 \ 8\\8 \ & \ 2 \ 4 \ 5 \ 5 \ 5 \ 6 \ 7 \ 8 \ 9\\9 \ & \ 0 \ 0 \ 0 \ 0 \ 4 \ 6 \ 7 \ 9\\\end{array}[/tex]

where something like [tex]5 \big| 0[/tex] represents the number 50.

The most frequent leaf is "0" in the very bottom row. It shows up four times, which is the most of any of the other leaf.

This leaf ties to the stem of 9.

stem = 9 & leaf = 0 leads to the data value 90.

Therefore, the mode is 90

please help me solve this

Answers

Answer:

∠ F ≈ 24.2°

Step-by-step explanation:

using the tangent ratio in the right triangle

tan F = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{GH}{FG}[/tex] = [tex]\frac{9}{20}[/tex] , then

F = [tex]tan^{-1}[/tex] ( [tex]\frac{9}{20}[/tex] ) ≈ 24.2° ( to the nearest tenth )

,= 2420
Step-by-step explanation:
using the tangent ratio in the right triangle

An automobile tire at 30.0°c has a pressure of 3.00 atm. the temperature decreases to -5.00°c. assume that there is no volume change in the tire. formula to use: p1 t1 = p2 t2 how does the tire pressure change in response to the temperature change?

Answers

The process is an isochoric process. Then the tire pressure change in response to the change in temperature is 2.65 atm.

What is thermodynamics?

It is a branch of science that deals with heat and work transfer.

An automobile tire at 30.0°C has a pressure of 3.00 atm.

The temperature decreases to -5.00°C.

Assume that there is no volume change in the tire.

Then for the constant volume process, we have

[tex]\dfrac{P_1}{P_2} = \dfrac{T_1}{T_2}\\\\\dfrac{3}{P_2} = \dfrac{303}{268}\\\\P_2 \ = 3\times \dfrac{268}{303}\\\\P_2 \ = 2.65[/tex]

The tire pressure change in response to the change in temperature is 2.65 atm.

More about the thermodynamics link is given below.

https://brainly.com/question/7206767

Answer:

How does the tire pressure change in response to the temperature change?

✔ decreases

What is the new pressure of the tire after the temperature change?

2.65 ✔ atm

Step-by-step explanation:

Got it right on edge

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