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patriot [66]
3 years ago
9

Olivia earns $8.50 per hour for babysitting her brother. She also earns a weekly bonus of $12 if she helps with

Mathematics
2 answers:
Amiraneli [1.4K]3 years ago
8 0

Answer

a

Step-by-step explanation:

kodGreya [7K]3 years ago
8 0

Answer:

Olivia babysat for a total of 15 hours.

Step-by-step explanation:

8.50(h) + 12 = 139.50

In order to get a direct result of the hours she

worked, we have to subtract 12 on both sides:

8.50(h) + 12 - 12 = 139.50 - 12

In order to fine the value of time she spent, we have to divide the amount of money she got on both sides:

<u>8.50(h)</u> = <u>127.5</u>

 8.50   =  8.50

    h     =     15

Therefore, Olivia babysat for a total of 15 hours.

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