Question

These People! I can’t do this!!! I need YOU!

Ross and Rachel are in NYC shopping. After each store they visit, they have less and less money each. Use the system of equations below to
A) determine the number of stores it will take for both to have the same amount of money.
B) determine how much spending money they will both have at this time.

ROSS: a = 927 - 45s
RACHEL: a = 792 - 36s

Answer 1

Let’s solve for “a” and “s”.

a = 927 - 45s
a = 792 - 36s

927 - 45s = 792 - 36s
927 - 792 = 45s - 36s
135 = 9s
s = 15
a = 927 - (45 x 15) = 252