Question

Jose has $20 more than Sarah. Their combined mobey totals $90. Write and solve an algebric model to determine the amount of money each person has.

Answer 1

Jose has $55 dollars and Sarah has $35. If you add both of them together you will get $90.

Answer 2

Let S= the amount of money Sarah has.

Let J= the amount of money Jose has

J= S+20

J+S=90

But we also know that J can equal S+20

So,

S+20+S=90

2S+20=90

2S=70

S=35

So Sarah has $35, and Jose has $35+$20, so he has 55$