document.write( "Question 666194: How many questions would you need to get correct on a 78 problem quiz in order to get at least a 90 percent as your grade? \n" ); document.write( "
Algebra.Com's Answer #414334 by swincher4391(1107)\"\" \"About 
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x/78 >= 90/100\r
\n" ); document.write( "\n" ); document.write( "100x >= 78*90\r
\n" ); document.write( "\n" ); document.write( "x>= 70.2\r
\n" ); document.write( "\n" ); document.write( "But of course you can't get .2th of a question right. So you must get 71 at least.
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