There were 80 runners to start a race. In the first half of the race, 1/5 of them dropped out. In the second half of the race, 5/8 of the remaining runners dropped out. How many runners finished the race

Answers

Answer 1

Answer:

24

Step-by-step explanation:

Initially, there were 80 runners in the race. After the first half, 1/5 of them dropped out (given). Therefore, 4/5*80=64 runners remain. In the second half, 5/8 of these 64 runners drop out, meaning 3/8*64=24 runners finished the race.


Related Questions

Samuel purchases a half dozen cupcakes for $4.25 which expression can be used to determine the price for 34 cupcakes​

Answers

Answer:

half dozen = 6

(4.25 dollars / 6 cupcakes ) * 34 cupcakes = 24.08 dollars

Step-by-step explanation:

Answer:

$24.14

Step-by-step explanation:

$4.25 ÷ 6 = $.71

34 × $.71 = $24.14

WILL GIVE BRAINLIEST
PLEASE HELP!

Answers

Answer:

1 2/18

Step-by-step explanation:

I need 20 more words to answer so here you so hope you d good on your test/quiz :D

The pay rate of a worker, P(h), as a function of the number of hours worked h is shown in the graph.

What is the practical range for the function p(h)?

(6,12)
[0,40]
[6,12]
{6,8,10,12}

Answers

Answer:

{6,8,10,12}

Step-by-step explanation:

just took the test

given p(a) =0.7, P(b) = .86 and P (A and B) = 0.652 find the value of p (A|B)

Answers

Answer:

.758 or 163/215

Step-by-step explanation:

Conditional probablity formula:

(A|B)= (A∩B)/B

we have

.652/.86

this equals .758 or 163/215

!)) can you guess what these three digts are

Answers

Since the options are not given, Let's assume that the answer is 294 or 106.

The answers are infinite.

Hope it helps you...

Answered by Benjemin ☺️

PLEASE THIS IS LATE AND IF I DON'T GET IT TURNED IN WITHIN 5 MINUTES I WILL FAIL

Answers

Answer:

yo dude it's D (hope this helps)

Answer:

The answer is D

Step-by-step explanation:

12/13 will shrink the number if multiplied by 5

1 will just be 5(1) which is still 5

12/12 is the same as multiplying 5 by 1 which is also 5

Multiplying 5 by 0 will obviously make it 0

A cereal box is 6.2 inches high, 8 inches long, and 2.5 inches wide. What is the volume
of the cereal box rounded to the nearest tenth.
49.6
41.3
124
248

Answers

Answer:

124

Step-by-step explanation:

v = l×w×h

v = 6.2 × 8 × 2.5

v = 124

PLEASE HELP FAST!!!

One number is equal to the square of another. Find the numbers if both are positive and their sum is 90.

Answers

Answer:

x = y^2

:

Find the numbers if both are positive and their sum is 12

x + y = 12

replace x with y^2, you have a quadratic equation

y^2 + y - 12 = 0

Step-by-step explanation:

Factors to

(y+4)(y-3) = 0

The positive solution is all they want here

y = 3

then

x = 3^2

x = 9

;

they add up to 12

Answer:

I’m a bit confused by the question, but hope this helps. Look below!

Step-by-step explanation:

There are multiple different ones, but here’s the ones I think. (This is my work btw.)

45+45= 90

45•45= not 45

10+80=90

10•10= not 80

9+81= 90

9•9=81

9 and 81!

20 POINTS MARKS BRAINLIST

Answers

Answer:

A.) The median for Set A is greater than the median for Set B

Step-by-step explanation:

Find the volume of the prism

Answers

Answer:

Step-by-step explanation:

The formula for the volume of a prism is V=Bh , where B is the base area and h is the height. The base of the prism is a rectangle. The length of the rectangle is 9 cm and the width is 7 cm.

V=Bh the length of the rectangle is 9 cm and the width is 7 cm

A large home improvement store is considering expanding its selection of moving products, such as cardboard boxes and packing tape. The store constructs a 90% confidence interval to estimate the proportion of all customers who have moved houses at least once in the last five years. In the random sample of 620 customers, 201 (32.4%) replied that they had moved at least once in the last five years. The sample yielded the 90% confidence interval (0.293, 0.355) for the proportion of all customers who have moved in the past five years. What is the correct interpretation of this confidence interval

Answers

The correct interpretation of the confidence interval is 90% confidence that the true proportion of all customers who have moved in the past five years is between 0.293 and 0.355.

The confidence interval is also not a guarantee that the true proportion is between 0.293 and 0.355. It is simply a statement of our confidence that the interval contains the true proportion.

This means that if the study were repeated many times, and constructed a 90% confidence interval each time, then 90% of the intervals would contain the true proportion.

In this case, the sample proportion is 0.324, which is within the confidence interval. This means that the sample data is consistent with the confidence interval. However, the sample proportion could be outside of the confidence interval if we had a different sample.

To learn more about confidence intervals;

https://brainly.com/question/24131141

#SPJ12

Worth lots of points :) Find the area of the parallelogram below.

Answers

23.8 inches squared if im wrong sorry but what i did was i added 7.4 plus 7.4 cause there are two of the same side then did the same with 4.5

A campground covers their
rectangular-shaped pool each
winter. If the area of the cover is
333.5 square feet, and the pool is
23 feet long, find the width.

Answers

Answer:

width = 14.5 feet

Step-by-step explanation:

Area = length * width

333.5 = 23 * x  divide both sides by 23

14.5 = x

Shabina is making a cubiod-shaped swimming pool. Her pool will be 20m long and 5m wide. Its volume will be 200m squared. What is the depth of her pool?

Answers

Answer:

2m

Step-by-step explanation:

HxWxL

20m x 5m = 100m

200m/100m = 2m

Solve for x and y. X= Y=

Answers

Answer:

x = 82°

y = 8°

Step-by-step explanation:

[tex]x + 98 = 180 \\ x = 180 - 98 \\ x = 82[/tex]

[tex]y + x = 90 \\ y + 82 = 90 \\ y = 90 - 82 \\ y = 8[/tex]

A chef was preparing for an event. The event was scheduled to have 100 guests in attendance. The chef had a rate of preparing meals for 10 guests every 1 and ½ hrs. At this rate, how many hrs. would it take the chef to prepare the meals for the 100 guests that were scheduled to be at the event?

Answers

Answer:

15 hours

Step-by-step explanation:

10 guests - 1.5 hours

1 guest - 1.5 / 10 = 0.15 hours

100 guests - 0.15 x 100 = 15 hours

A spinner is spun 77 times and stops on the color green 17 times. Calculate the experimental probability of the spinner stopping on the color green.

Answers

Answer:

[tex]\boxed {\boxed {\sf \ \frac {17}{77}}}}[/tex]

Step-by-step explanation:

The experimental probability is the probability of an event occurring in an experiment that was conducted. It is the ratio of the times an event occurred to the total trials.  

[tex]P(event)= \frac{ number \ of times \ event \ occurs} {total \ number \ of \ trials}[/tex]

We are trying to find the experimental probability of landing on green.

The spinner was spun 77 times. This is the total number of trials. The spinner landed on green 17 times. This is the event.

[tex]P(green)= \frac{17}{77}[/tex]

This fraction cannot be simplified any further, so the experimental probability of landing on the color green is 17/77

Which expression is equivalent to 9s + 3 x 5 -2s?
A. 7s + 15
B. 2s + 22
C. 22s
D. 15s

Answers

The answer is A. When you take the 9s and the -2s, you get 7s. Then you add the 3x5 and end up with 15. Giving you the answer 7s+15
Answer is A hope this helps

What is the Theoretical Probability of landing on red? *
(10 Points)
43%
40%
36%
33.3%

Answers

2/6, that in percentage form is 33.3%

Place the vocabulary words on the diagram to correctly identify the opposite, adjacent, and hypotenuse sides of the
triangle.

Answers

Answer:

LINE QR IS THE HYPOTENUSE

LINE RS IS THE ADJACENT

LINE QS IS THE OPPOSITE.

need help fast!!!!!!!!!! :)

Answers

Step-by-step explanation:

with what that would help me

PLZ NEED HELP ASAP SHOW WORK TO PLZ IT WOULD MEAN A LOT

Answers

First Chart: Perimeter

Square Portion:

Original Side Lengths: P = 4  (1 + 1 + 1 + 1 ) =4

Double Side Lengths: P = 8 (2 x 4 = 8)

Triple Side Lengths: P = 12  (4 x 3 = 12)

Quadruple Side Lengths: P = 16 (4 x 4 = 16)

Rectangle Portion:

Original Side Lengths: P = 6 (1 x 2 + 2 x 2 = 6)

Double Side Lengths: P = 12 (2 x 2 + 4 x 2 = 12)

Triple Side Lengths: P = 24  (4 x 2 + 8 x 2 = 24)

Quadruple Side Lengths: P = 48 (8 x 2 + 16 x 2 = 48)

Second Chart: Area

Square Portion:

Original Side Lengths: A = 1 (1 x 1 = 1)

Double Side Lengths: A = 4 (2 x 2 = 4)

Triple Side Lengths: A = 9 (3 x 3 = 9

Quadruple Side Lengths: A = 16 ( 4 x 4 = 16)

Rectangle Portion:

Original Side Lengths: A = 2 ( 1 x 2 = 2 )

Double Side Lengths: A = 8 ( 2 x 4 = 8)

Triple Side Lengths: A = 18 ( 3 x 6 = 18)

Quadruple Side Lengths: A = 32 (4 x 8 = 32)

what is 1/3 divided by 3/4

Answers

Answer:

..

Step-by-step explanation:

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

Answer:

4/9

Step-by-step explanation:

(1/3) / (3/4)

=>1/3 * 4/3

=> 4/9

Hope it helps :)

find the surface area of a cube with side edges of 9in. show steps

Answers

Answer:

486 sq. in

Step-by-step explanation:

Find the area of one face

Area = s^2

s = 9 in

Area = 9^2

Area = 81

Area 6 sides

There are 6 sides to a cube. So if you have the area of 1 side, you need only multiply by 6 to get the area of the cube

Area = 6 * 81

Area = 486

Simplify the mathematical expressions to determine the product or quotient in scientific notation. Round so the first factor goes to the hundredths place.

Answers

Answer:

whats the problem

Step-by-step explanation:

Identify the slope and y-intercept of the following line: 2y + 4 =-6x

Answers

Answer:

y = -3x - 2, the slope is -3 and the y-intercept is -2

Step-by-step explanation:

2y +4 = -6x and minus the four to get 2y alone

Then divide -4 and -6x by 2 to get y = -3x and -2

there is 1/3 of a pan of cornbread left. Four children are going to share it equally. What fraction of the whole pan of cornbread with each child get?

Answers

1/12..................................

Ok. So I need help with this problem that wants me to find the side length of a rectangle. The area of it is 3 sq. ft, and the top of it is 1/7 ft. I need to find the other side of it. Thank you!​

Answers

Do the equation A=LxW and substitute the numbers.
3=Lx 1/7

50 POINTS!

Solve for the values of x and y

Answers

Answer:                                                          

                 

Step-by-step explanation:

which is the correct answer? ( links = report )

Answers

The answer is letter C
Answer: C seems to be the correct answer!
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