document.write( "Question 1134422: How do you set up this formula?\r
\n" ); document.write( "\n" ); document.write( "It takes Ashleigh 5 min to type a page of her essay and 1 min to proofread a page. One afternoon she spent 2hr typing and proofreading a total of 38 pages. How many pages did she proofread and show many did she type?
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Algebra.Com's Answer #751807 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
Let \"+t+\" = her time in minutes spent typing
\n" ); document.write( "Convert hours to minutes:
\n" ); document.write( "\"+2%2A60+=+120+\" min
\n" ); document.write( "\"+120+-+t+\" = her time in minutes spent proofreading
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\n" ); document.write( "In words:
\n" ); document.write( "[ rate of typing ] x [ time spent typing ] + [rate of proofreading ] x [ time spent proofreading ] = 38
\n" ); document.write( "\"+%28+1+%2F+5+%29%2At+%2B+%28+1%2F1+%29%2A%28+120+-+t+%29+=+38+\"
\n" ); document.write( "Multiply both sides by \"+5+\"
\n" ); document.write( "\"+t+%2B+5%2A%28+120+-+t+%29+=+38+\"
\n" ); document.write( "\"+t+%2B+600+-+5t+=+38%2A5+\"
\n" ); document.write( "\"+-4t+=+-600+%2B+190+\"
\n" ); document.write( "\"+4t+=+410+\"
\n" ); document.write( "\"+t+=+102.5+\" min
\n" ); document.write( "and
\n" ); document.write( "\"+120+-+t+=+120+-+102.5+\"
\n" ); document.write( "\"+120+-+t+=+17.5+\" min
\n" ); document.write( "--------------------------------
\n" ); document.write( "\"+%28+1%2F5%29%2At+=+%281%2F5%29%2A102.5+\"
\n" ); document.write( "\"+%281%2F5%29%2At+=+20.5+\"
\n" ); document.write( "and
\n" ); document.write( "\"+%28+1%2F1+%29%2A%28+120+-+t+%29+=+120+-+102.5+\"
\n" ); document.write( "\"+%28+1%2F1+%29%2A%28+120+-+t+%29+=+17.5+\"
\n" ); document.write( "---------------------------------------
\n" ); document.write( "She typed 20.5 pages and proofread 17.5 pages
\n" ); document.write( "( adds up to 38 )
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\n" ); document.write( "check my math
\n" ); document.write( "Hope it makes sense to you\r
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