# Question ba32d

Jan 31, 2017

Shirts are $30.00 each. Jeans are$45.00 each

#### Explanation:

Let the cost of 1 pair of jeans be $j$
Let the cost of 1 shirt be $s$

Then we have:

2j+color(white)(3)s=$120" "...................Equation(1) color(white)(2)j+3s=$135" ".....................Equation(2)

Multiply $E q u a t i o n \left(1\right)$ by 3

6j+3s=$360" "...................Equation(1_a) color(white)(2)j+3s=$135" ".....................Equation(2)

$E q u a t i o n \left({1}_{a}\right) - E q u a t i o n \left(2\right) g i v e s :$

5j+0=$225 Divide both sides by 5 j=($225)/5 = $45.00 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Substitute $j = 45 \text{ into } E q u a t i o n \left(2\right)$giving: 45+3s=$135" "......................Equation(2_a)

Subtract 45 from both sides

3s=$90 Divide both sides by 3 s=$30#