Question

A video game system and several games are sold for $688. The cost of the games is 3 times as much as the cost of

the system. Find the cost of the system and the cost of the games.

Answer 1

Let s = the cost of the system, and g = the cost of the games.

Then it is given that: s + g = 636

and: g = 3*s.

Plug in 3*s for g in the 1st equation to get:

s + 3*s = 636

-> 4*s = 636

-> s = 159.

And since s + g = 636, we have:

159 + g = 636

-> g = 636 - 159

-> g = 477.

The system cost is 159 and games cost 477.

Explanation: