Question

Maggie earns money from working at the pet store and answering phones. She earns $10 each hour she works at the pet store and $0.25 for each phone call she answers. Maggie answered 60 phone calls and earned $115 last week.

Part A: Create an equation that will determine the number of hours she worked at the pet store. (3 points)

Part B: Solve this equation justifying each step with an algebraic property of equality. (6 points)

Part C: How many hours did Maggie work at the pet store last week? (1 point)



Can you solve Part B

Answer 1

A)
The equation is 10x + 0.25(60) = 115 where x = the number of hours she worked.

B)
10x + 0.25(60) = 115

Simplify.

10x + 15 = 115

Subtract 15 from both sides.

10x = 100

Divide 10 on both sides.

x = 10

C)
Maggie worked 10 hours at the pet store last week.

Hope this helps!