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3 years ago

If Joan read 75 pages in 4 hours how long will it take her to read 250 pages

Mathematics

2 answers:

galina1969 [7]3 years ago

7 0

Answer:

13 hours and 20 minutes

Step-by-step explanation:

Joan read in 4 hours = 75 pages

She read in 1 hour = $\frac{75}{4}$ pages

= 18.75 pages

It will take her to read 250 pages = $\frac{250}{18.75}$

= 13.33 hours.

Now we will convert 0.33 hours to minute.

0.33 × 60 = 19.8 minutes ≈ 20 minutes

It will take her 13 hours and 20 minutes to read 250 pages.

denis23 [38]3 years ago

6 0

75/4=25 pages per hour, so, now we have to divide 250 by 25.

250/25=10

So, it would take Joan 10 hours to read 250 pages. :)

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3 years ago

Ron has 24 coins with a total value of $3.00. The coins are nickels (5 cents) and quarters (25 cents). How many of each coin doe

Vesna [10]

Answer:

Ron has 15 nickels and 9 quarters

Step-by-step explanation:

Create a system of equations where n is the number of nickels and q is the number of quarters he has:

n + q = 24

0.05n + 0.25q = 3

Solve by elimination by multiplying the top equation by -0.25

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Add them together and solve for n:

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So, Ron has 15 nickels. Find how many quarters he has by subtracting 15 from 24:

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3 0

2 years ago

Josie is training for a race the ratio of the number of minutes she wants to the number of miles she wants is 2043 she plans to

guajiro [1.7K]

Answer:

Josie takes 0.93 minutes to run 2 miles.

Step-by-step explanation:

We are given the following in the question:

Ratio:

Number of minutes: Number of miles = 20:43

Josie wants to run 2 miles. We have to find the number of minutes she need to run to maintain the ration.

Let x be the number of minutes Josie run.

This can be done in the following manner:

$\dfrac{20}{43} = \dfrac{x}{2}\\\\\Rightarrow x = \dfrac{20}{43}\times 2\\\\\Rightarrow x = 0.93$

Thus, Josie takes 0.93 minutes to run 2 miles.

8 0

2 years ago

If (NN)^3 = 8518N, what digit does N represent?

sveticcg [70]

Answer:

Step-by-step explanation:

I am going to solve this by trial and error:

(A) 1

Is: $(11)^{3} = 85181$ ?

$(11)^3 = 1331$

So 1 is not the digit of N.

(B) 2

Is: $(22)^{3} = 85182$ ?

$22^3 = 10648$

So 2 is not the digit of N.

(C) 4

Is: $(44)^{3} = 85184$ ?

$44^3 = 85184$

Correct, so the answer is c.

(D) 5

$55^3 = 166375 \neq 85185$

(E) 6

$66^3 = 287496 \neq 85186$

7 0

3 years ago