Home > AC > Chapter 7 > Lesson 7.2.3 > Problem7-78

7-78.

Multiple Choice: The cost of a sweater is $3$ less than the cost of a pair of jeans, while a hat is twice the cost of a sweater. If the pair of jeans costs j dollars, then which expression below represents the cost of the hat?

1. $2j$

1. $j − 3$

1. $2(j−3)$

1. $2j−3$

First find the cost of a sweater using the variable $j$.

$\text{Sweater} = j − 3$

Using that information, can you find the price of the hat?

$\text{Hat} = 2\left(j − 3\right),$ (c)