SOLUTION: 1. chris went shopping and bought 5 nephews a gift, either a video costing 14.95 or a cd costing 16.88. he spent 76.68. how many videos and cd did he buy?

Algebra ->  Customizable Word Problem Solvers  -> Evaluation -> SOLUTION: 1. chris went shopping and bought 5 nephews a gift, either a video costing 14.95 or a cd costing 16.88. he spent 76.68. how many videos and cd did he buy?       Log On

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Question 314630: 1. chris went shopping and bought 5 nephews a gift, either a video costing 14.95 or a cd costing 16.88. he spent 76.68. how many videos and cd did he buy?

Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
V-video
C-CD
1.V%2BC=5
2.14.95%2AV%2B16.88%2AC=76.68
From eq. 1,
V=5-C
Substitute in eq. 2,
14.95%285-C%29%2B16.88C=76.68
74.75-14.95C%2B16.88C=76.68
1.93C=1.93
highlight%28+C=1%29
Then from eq. 1,
V%2BC=5
highlight%28+V=4%29
He bought 4 videos and 1 CD.