SOLUTION: Jason earned $42 each of the last two weeks, and $58 this week. In order to maintain an average of at least $50 a week, how much must Jason earn this week?

Question 992550: Jason earned $42 each of the last two weeks, and $58 this week. In order to maintain an average of at least $50 a week, how much must Jason earn this week?
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
.
To average $50 over 4 weeks,
the sum of his earnings must be:
4*$50=$200
.
The sum of his earnings the first three weeks was:
$42+$42+$58=$142
.
So for the fourth week he must earn:
$200-$142=$58
.
ANSWER: he must earn $58 the fourth week to average $50 per week.
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