All categories

3 years ago

Adrianna can read 7 pages in 10 minutes. At this rate,how many pages can she read in 25 minutes

Mathematics

2 answers:

Westkost [7]3 years ago

5 0

Use a proportion. 7/10 = x/25. Multiply 10 by 2.5 to get 25. Similarly, multiply 7 by 2.5 to get 17.5. 17 1/2 pages.

Mice21 [21]3 years ago

5 0

Answer: She can read 17 and a half page in 25 minutes.

Step-by-step explanation:

We assume that the number of pages is directly proportional to the number of minutes taken to read them.

Given : Adrianna can read 7 pages in 10 minutes.

Rate of reading= $\dfrac{\text{Number of pages}}{\text{Time}}=\dfrac{7}{10}$ (1)

Let x denotes the number of pages she read in 25 minutes.

Rate of reading = $\dfrac{x}{25}$ (2)

From (1) and (2) , we have

$\dfrac{x}{25}=\dfrac{7}{10}$ [in direct variation ration remains constant.]

$x=\dfrac{7\times25}{10}=\dfrac{175}{10}=17\dfrac{1}{2}$

Hence, She can read 17 and a half page in 25 minutes.

You might be interested in

(Ignore this) I mean you can get the points if u want lol

Alborosie

Answer:

yuhhhh thanks brah hehehejejejne

6 0

3 years ago

Two rectangles have the same width. The length of one is 2 feet longer than the width. The length of the other is 4 feet longer

Lelu [443]

Gtrrthsrtyu6hgrtysrthsthrthsrthgrty6

3 0

3 years ago

What is the value of 1 in 58.132

pav-90 [236]

1 tenth is the anwer

7 0

4 years ago

Read 2 more answers

Find the angles a,b,c and d

I am Lyosha [343]

Answer:

(a, b, c, d) = (101°, 79°, 83°, 97°)

Step-by-step explanation:

∠a is the supplement of the one marked 79°, so is ...

∠a = 180° -79°

∠a = 101°

∠b is a corresponding angle to the one marked 79°, so is congruent to it.

∠b = 79°

∠c is a vertical angle with the one marked 83°, so is congruent to it.

∠c = 83°

∠d is a same-side interior angle between two parallel lines, so is supplementary to ∠c.

∠d = 180° -83°

∠d = 97°

3 0

3 years ago

Find the root of <img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B2x%20%7B%20%7D%5E%7B2%7D%20%7D%20%20%2B%20x%20%2B%20%20%5Csq

artcher [175]

Answer:

The root of x = -2 + √2

Step-by-step explanation:

Step(i):-

Given $\sqrt{2x^{2} } + x +\sqrt{2} = 0$

⇒ $\sqrt{2} } ( x^2 ) ^{\frac{1}{2} } + x +\sqrt{2} = 0$

⇒ $\sqrt{2}x + x +\sqrt{2} = 0$

⇒ $(\sqrt{2} + 1) x = - \sqrt{2}$

$x = \frac{-\sqrt{2} }{(\sqrt{2} + 1)}$

Step(ii):-

Rationalizing

$x = \frac{-\sqrt{2} }{(\sqrt{2} + 1)} X \frac{(\sqrt{2} - 1)}{(\sqrt{2} - 1)}$

Apply ( a-b ) ( a+b) = a²-b²

$x = \frac{-\sqrt{2}(\sqrt{2} -1) }{(\sqrt{2})^{2} - 1^{2} )} = \frac{-(2-\sqrt{2} }{2-1}$

The root of x = -2 + √2

6 0

3 years ago