to find the slope just pick two numbers, i chose (2,20) and (7,70) and then put them in the slope formula y2-y1/x2-x1. That gave me 10. I hope its correct. :)

7 0

2 years ago

The number of children at the library was 3 times the number adults. The total number of people at the library was 48. How many

Rufina [12.5K]

Answer:

D 36

Step-by-step explanation:

<em>Write the information algebraically</em>

c = 3a

c + a = 48

c = children, a = adults

<em>In the second sentence (in bold), we can replace c with 3a</em>

c + a = 48 → 3a + a = 48

<em>Simplify</em>

3a + a = 48 → 4a = 48 → a = 12 (divide both sides by 4)

<em>We can then substitute or plug in a = 12 into the original equation:</em>

c + a = 48 → c + 12 = 48 → c = 36 (subtract 12 from both sides)

<h3>There are 36 children</h3>

7 0

2 years ago

Order least to greatest 52%, 0.57, and 2/5

Inessa [10]

Simple...

change them all into decimals...or fractions..or percents:

52%, 0.57, $\frac{2}{5}$ --->>

52%--->>0.52

0.57--->>0.57

$\frac{2}{5}$ -->>0.4

Now you can order from least to greatest....

$\frac{2}{5}$ , 52%, 0.57

Thus, your answer.

4 0

2 years ago