SOLUTION: Earl worked 20 hours last week. If he earned .50 an hour more but only worked 18 hours, he would have earned the same amount. How much per hour does earl earn?

Algebra ->  Customizable Word Problem Solvers  -> Finance -> SOLUTION: Earl worked 20 hours last week. If he earned .50 an hour more but only worked 18 hours, he would have earned the same amount. How much per hour does earl earn?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 510938: Earl worked 20 hours last week. If he earned .50 an hour more but only worked 18 hours, he would have earned the same amount. How much per hour does earl earn?
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
x = his rate of pay
20x = how much he was paid for working 20 hr
.
18*(x+1/2) = 20x
.
18x + 9 = 20x
9 = 2x
x = 4 1/2
.
20 * 4 1/2 = $90
.
18 * 5 = $90
.
So the correct answer is $4.50.
.
Done.