roscohomer roscohomer

07-10-2016
Mathematics

Answered

furnace repairs Rj's plumbing charges $55 plus $40 per hour for emergency service. Gary remembers being billed over $150 for an emergency call. How long was Rj there?

Use an inequality

Verified Answer :

Apoe222 Apoe222

08-10-2016

You set it up as a y=mx+b problem 150=55x+40 then you subtract 40 from 150 making 110=55x so x=2

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