Question

You buy 5 pounds for 35$. How much does one pound cost?

Answer 1

35/5=7
So 7 dollars is the answer.

Answer 2

one pound costs $7

Explanation:

We can use proportion to solve this problem

Let x represent the cost of one pound

5 pounds = $35

1 pound = x

Cross-multiply

5x = 35

Divide both-side of the equation by 5

`(5x)/(5)` =
`(35)/(5)`

(On the right-hand side of the equation, 5 at the numerator will cancel-out 5 at the denominator leaving us with just x, while on the left-hand side of the equation 35 will be divided by 5)

x = $7

Therefore, one pound costs $7