# RJ’s Plumbing and Heating charges $55 plus$40 per hour for emergency service. Gary remembers being billed over $100 for an emergency call. How long was RJ’s there? iohanetc 2020-10-28 Answered RJ’s Plumbing and Heating charges$55 plus $40 per hour for emergency service. Gary remembers being billed over$100 for an emergency call. How long was RJ’s there?
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Demi-Leigh Barrera
Let x be the number of hours RJ’s was there. Since the bill is over \$100, we can write the inequality:
$55+40x>100$
Solve for x. Subtract 55 from both sides:
$40x>45$
Divide both sides by 40:
$x>1.125$
So, RJ’s was there for more than 1.125 hours.