Question

The total cost of a pair of jeans and three shirts is $114. The shirts each cost the same amount, and the jeans are $45.

What is the price per shirt?

$53
$23
$69
$159

Answer 1

Let j = price of jeans
and let s = price of shirt

j + s + s + s = 114

j + 3s = 114

We are told that j = 45, so substitute 45 for j:

45 + 3s = 114

Now solve the equation for s.
First, subtract 45 from both sides.
Then divide both sides by 3.