Free Interpreting linear expressions Practice Problems • Learn To Be

A model house that runs completely on renewable energy uses

2

windmills and

3

solar panels. The power output of each windmill is

W

, and the power output of each solar panel is

S

. There are different ways of thinking about how to calculate the power output of

10

of these homes.

Match the expressions to the corresponding descriptions.

	Find the power output of $1$ renewable energy house, then multiply that by $10$	Find the numbers of windmills and solar panels in $10$ houses, then add up all the power outputs	Neither of these
$20S+30W$
$20W + 30S$
$10(2W+3S)$
$10(2S+3W)$

Interpreting linear expressions