Question

Example Problem:

Akari gets paid a flat rate of $20.00 to mow his neighbor's lawn plus an
additional $10 per hour to rake the leaves. He earned a total of $90.
Write an equation that represents the total money he earned and solve
for the number of hours he spent raking the leaves.

Answer 1

7 hours

Explanation:

20.00 + 10x = 90

10x = 70

x = 7

Answer 2

20 + 10x = 90 (where x is the number of hours spent raking leaves)

7 hours

Explanation:

let x = number of hours spent raking leaves

Given:

• Flat rate of $20.00 to mow lawn
• $10 per hour to rake leaves
• total earned = $90

20 + 10x = 90

To solve: 20 + 10x = 90

Subtract 20 from both sides:

⇒ 10x = 70

Divide both sides by 10:

⇒ x = 7

Therefore he spent 7 hours raking the leaves.