SOLUTION: You have $160 and save $7 per week. Your friend has $210 and saves $5 per week. After how many weeks will each of you have the same amount of money?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: You have $160 and save $7 per week. Your friend has $210 and saves $5 per week. After how many weeks will each of you have the same amount of money?      Log On


   



Question 412437: You have $160 and save $7 per week. Your friend has $210 and saves $5 per week. After how many weeks will each of you have the same amount of money?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let A = the amount of money that you both
will have in w weeks
For me:
A+=+160+%2B+7w
For my friend:
A+=+210+%2B+5w
Set the 2 A's equal
160+%2B+7w+=+210+%2B+5w
2w+=+50
w+=+25
In 25 weeks you will both have the same amount
check answer:
A+=+160+%2B+7%2A25
A+=+160+%2B+175
A+=+335
and
A+=+210+%2B+5%2A25
A+=+210+%2B+125
A+=+335
OK