CPM Homework Help : CCA Problem 7-27

Write an equation or system of equations to solve this problem.

Morgan started the year with $$615$ in the bank and is saving $$25$ per week. Kendall started with $$975$ and is spending $$15$ per week. When will they both have the same amount of money in the bank?

Hint:

Create two separate equations, one demonstrating the amount of money Morgan gains and the other demonstrating the amount of money Kendall uses. Set the equations equal to each other and solve for $x$ .

More Help:

Let $x =$ the $#$ of weeks

$25x + 615 = 975 − 15x$

Solve for $x$ .

Answer:

$9$ weeks