SOLUTION: Charles is saving $5 each week. He earns an extra $15 by doing his neighbour’s gardening. How many weeks will he need to save in order to have at least $75?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Charles is saving $5 each week. He earns an extra $15 by doing his neighbour’s gardening. How many weeks will he need to save in order to have at least $75?       Log On


   

Question 1054512: Charles is saving $5 each week. He earns an extra $15 by doing his
neighbour’s gardening. How many weeks will he need to save in order to
have at least $75?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
So Charles earns $20 per week,
20%2AW%3E75
W%3E75%2F20
W%3E15%2F4
Since the number of weeks, W, is an integer, choose the next highest integer.
W=4