Question

Jasmine is a certified youth soccer referee. She had to pay $45 to get certified by taking a course. She earns $18 per game. If she made $351 this summer, how many games did she ref?

a) 15 games
b) 16 games
c) 17 games
d) 18 games

Aaron mows lawns and makes $70 per week. Last week he spent $15 on gas and spent 5 hours mowing all of the lawns. How much did he earn per hour?
a) $11 per hour
b) $12 per hour
c) $13 per hour
d) $14 per hour

A staging company for real estate has $370 to spend on a new dining room set. A table costs $220, and each chair costs $35. How many chairs can they afford to purchase?
a) 4 chairs
b) 5 chairs
c) 6 chairs
d) 7 chairs

Answer 1

Jasmine reffed 17 games, Aaron earned $11 per hour, and the staging company can afford 4 chairs.

Step-by-step explanation:

To determine how many games Jasmine reffed we subtract the certification cost from her total earnings and then divide by the amount she earns per game:

Total games reffed = (Total earnings - Certification cost) / Earnings per game

Total games reffed = ($351 - $45) / $18 = 17 games

For Aaron, we calculate his hourly earning by subtracting his expenses from his weekly earnings and then dividing by the hours worked:

Hourly earning = (Weekly earnings - Gas cost) / Hours worked

Hourly earning = ($70 - $15) / 5 hours = $11 per hour

For the staging company, we need to calculate how many chairs they can afford:

Chairs affordable = (Total budget - Table cost) / Cost per chair

Chairs affordable = ($370 - $220) / $35 = 4 chairs