Question

Joe, a plumber, charges $45 per hour plus

$100 for making an in-home visit. Write
and solve an equation to find out how
many hours of plumbing work are needed

Answer 1

Answer: (Y - 100)/ 45 =No of hours

where y is the full payment

Explanation:

Charges per hour plus visit is 45+100 where 100 Is fixed

2hr is (45 × 2) +100

Payment y for Xhrs= 45X + 100

Y =45X + 100

Y -100 =45X

Y -100/45 = X

Answer 2

Answer: The answer is five

Explanation:

Set y = z

50x + 75 = 65x

Subtract 50x from both sides

50x (-50x) + 75 = 65x (-50x)

75 = 15x

Divide both sides by 15

75 (/15) = 15x (/15)

5 = x

And there we have it, x = 5! So it takes 5 hours of work for each to cost the same.