Question

A soccer coach purchased one goal and some soccer balls for the team. The expression 180 + 15x represents the cost before tax. What do the different parts of the expression model? Drag the parts of the expression into the boxes to match each description.

Answer 1

The expression $180+15x$ consists of ONE CONSTANT [180] and another VARIABLE EXPRESSION [15x].

Since the coach purchased ONE GOAL, this corresponds to the CONSTANT, which is 180. 180 is the price of the goal.

Since coach purchased several soccer balls, but doesn't say how many, it is the variable part, 15x, where

• either 15 is price of ball and x is the number of balls, OR
• 15 is the number of balls and x is the price of each

ANSWER:

180 represents the price of the goal

15x represents the total price of the soccer balls

Answer 2

$180 is the cost of the goal, and $15 is the cost of each soccer ball.