Question

Write the phrase as a unit rate.
$13.50 for 3.6 lb
Alb
Please help FAST

Answer 1

$3.75/lb

Explanation:

First, let's set up a proportion. The top number represents the cost, while the bottom number represents how many pounds. In order to get a unit rate, we need to figure out how much it costs for 1 pound.

`(13.5)/(3.6) =(x)/(1)`

Now, cross multiply. To cross multiply, you would multiply 13.5 by 1 and 3.6 by x.

`13.5 * 1 =13.5\\3.6*x=3.6x`

Set these two equal to each other.

`13.5=3.6x`

Divide both sides by 3.6 to get x.

`(13.5)/(3.6) =(3.6x)/(3.6)\\x=3.75`

For unit rates, you have to write your answer as per unit. To do that, put a slash next to your answer, and then your unit.

$3.75 / lb (unit)