SOLUTION: Cindy saved $27.75 in 4 weeks.At that rate,how long will it take her to save $156?

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Question 21421: Cindy saved $27.75 in 4 weeks.At that rate,how long will it take her to save $156?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Cindy's rate of making money is $27.75 / 4 in dollars per week.
If we multiply this rate by a certain number of weeks, we want the
result to be $156.00.
In other words, (dollars / week) * weeks = dollars.
So, %2827.75+%2F+4%29+%2A+W+=+156+.
multiply both sides by 4
27.75+%2A+W+=+156+%2A+4+
divide both sides by 27.75
+W+=+%28156+%2A+4%29+%2F+27.75+