Question

Barrett and Penelope have some quarters for the vending machine.

The number of quarters Barrett has can be represented by
The number of quarters Penelope has is double the number of quarters Barrett has
The total number of quarters they have is 60
What is x, the number of quarters Barrett has?

Answer 1

if we take the number of quarters Barrett have to be x we know Penelope has twice that ie 2x. so in total they have 2x+x = 60, 3x = 60; so x= 60/3 = 20.

Barrett has 20 quarters.