SOLUTION: Zoe and wash have 160 Dino's. Wash has 4 times more than Zoe. How many does wash and Zoe have

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Question 999656: Zoe and wash have 160 Dino's. Wash has 4 times more than Zoe. How many does wash and Zoe have
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
Call their amounts, w and z.
So
w + z = 160 and
w = 4z
Now substitute for this w in the first equation
4z + z = 160
5z = 160
z = 32
w = 128