SOLUTION: Marge has $30 and is saving at the rate of $7 per week. Hank has $90 and is saving a the rate of $3 per week. How many weeks will it take for them to save the same amount?
Algebra ->
Customizable Word Problem Solvers
-> Finance
-> SOLUTION: Marge has $30 and is saving at the rate of $7 per week. Hank has $90 and is saving a the rate of $3 per week. How many weeks will it take for them to save the same amount?
Log On
Question 1013332: Marge has $30 and is saving at the rate of $7 per week. Hank has $90 and is saving a the rate of $3 per week. How many weeks will it take for them to save the same amount? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Marge has $30 and is saving at the rate of $7 per week.
M(x) = 30 + 7x
-----------------------
Hank has $90 and is saving a the rate of $3 per week.
H(x) = 90 + 3x
------------------------
How many weeks will it take for them to save the same amount?
---------
Solve:: M(x) = H(x) for "x"::
------
30+7x = 90+3x
4x = 60
x = 15 weeks
--------------
Cheers,
Stan H.
========
(