All categories

4 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]4 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]4 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. :)

You might be interested in

Solve: 2cos(x)-square root 3=0 for 0 less than x less than 2 pi

Leona [35]

Answer:

The general solution of $cos x = cos(\frac{\pi }{6})$ is

x = 2nπ± $\frac{\pi }{6}$

The general solution values

$x = - \frac{\pi }{6} and x = \frac{\pi }{6}$

Step-by-step explanation:

Explanation:-

Given equation is

$2cosx-\sqrt{3} =0 for 0$

$2cosx =\sqrt{3}$

Dividing '2' on both sides, we get

$cos x =\frac{\sqrt{3} }{2}$

$cos x = cos(\frac{\pi }{6})$

General solution of cos θ = cos ∝ is θ = 2nπ±∝

Now The general solution of $cos x = cos(\frac{\pi }{6})$ is

x = 2nπ± $\frac{\pi }{6}$

put n=0

$x = - \frac{\pi }{6} and x = \frac{\pi }{6}$

Put n=1

$x = 2\pi +\frac{\pi }{6} = \frac{13\pi }{6}$

$x = 2\pi -\frac{\pi }{6} = \frac{11\pi }{6}$

put n=2

$x = 4\pi +\frac{\pi }{6} = \frac{25\pi }{6}$

$x = 4\pi -\frac{\pi }{6} = \frac{23\pi }{6}$

And so on

But given 0 < x< 2π

The general solution values

$x = - \frac{\pi }{6} and x = \frac{\pi }{6}$

6 0

3 years ago

Amanda is cooking a cake.the recipe calls for 6 cups sugar.she accidentally put in cups.how many extra cups did she put in?

GenaCL600 [577]

................................... "she accidently put in cups" ???? But she calls for 6 cups sugar. how many cups did she accidently put it?

8 0

3 years ago

Read 2 more answers

What is the area? Please explain steps so I can attempt to understand

yarga [219]

Answer:

$12 \sqrt{2}$

Step-by-step explanation:

you can use hypotenuse formula

45-45-90 isosceles right triangle

so, 45= x

x² + x² = 24²

2x² = 24²

x²= 24.12

x= $\sqrt{288} = 12 \sqrt{2}$

or :

you can use this rule: if you see a 45 45 90 isosceles right triagngle (you can look picture) 45=a cm and 90 = $a\sqrt{2}$

so ;

$a \sqrt{2} = 24$

a= $12 \sqrt{2}$

hope this helps ^-^

3 0

4 years ago

1. What does it mean that Nikoleta is in the 10th percentile for length and weight? Is that a desirable statistic if she was in

VladimirAG [237]

Explanation:

1. It means that Nikoleta is longer and heavier than 10% of children her age.

2. We generally expect that a change from being in the 50th percentile to the 10th percentile signifies a condition that is interfering with normal growth. That is not usually considered desirable.

5 0

4 years ago

Read 2 more answers

The equatorial radius of Mars is 3,394 km. Which of the following would be a reasonable estimate for the equatorial radius of Ma

Ivan

Answer:

I don't know that options but......

if we are rounding to the thousands, then the answer would be 3,000

if hundreds, the answer is 3,400

if tens: 3,390

If ones: 3,390

Step-by-step explanation:

round each number up or down based upon what the digit is.

5 0

4 years ago

Read 2 more answers