document.write( "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 \n" ); document.write( "
Algebra.Com's Answer #78554 by lauramg012(4)\"\" \"About 
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If each invention saves a certain percent out of 100, then inv.1+inv.2+inv.3 would be: 30+45+25=x
\n" ); document.write( "x=percent of fuel you save out of 100\r
\n" ); document.write( "\n" ); document.write( "100=x
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