3 years ago

It cost you $12 to start up your

Mathematics

1 answer:

brilliants [131]3 years ago

6 0

Step-by-step explanation:

let no. of hours be x.

45x - 12 ≥ 117

45x ≥ 129

x ≥ 2.8667 (5sf)

therefore, 3 hours (round up to next whole number).

Topic: inequalities

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