SOLUTION: One invention saves 30 % on fuel; a second saves 45 percent; a third saves 25%. If you use all three inventions at once, how much fuel can you save

SOLUTION: One invention saves 30 % on fuel; a second saves 45 percent; a third saves 25%. If you use all three inventions at once, how much fuel can you save

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Question 107797: One invention saves 30 % on fuel; a second saves 45 percent; a third saves 25%. If you use all three inventions at once, how much fuel can you save
Answer by lauramg012(4) (Show Source): You can put this solution on YOUR website!
If each invention saves a certain percent out of 100, then inv.1+inv.2+inv.3 would be: 30+45+25=x
x=percent of fuel you save out of 100
100=x
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