Question

The price for 3 protein bars $3.75, and the price of 3 fruit cups is $1.50. Write the equation

that represents the relationship between the number of protein bars, x, and fruit cups, y,
that you can buy with $15.50.

How many fruit cups can you buy with 4 protein bars?

Answer 1

7 fruit cups

Explanation:

$3.75/3x + $1.50y = $15.50

So, if you have 4 protein bars, the equation would read:

1.25x + 1.5y = 15.5

1.25(4) + 1.5y = 15.5

5 + 1.5y = 15.5

1.5y = 10.5

y = 7