document.write( "Question 40222: 4 shovels of sand are used for every 5 shovels of gravel in making cement. How many shovels of gravel are needed for 64 shovels of sand?
\n" ); document.write( "_______shovels of gravel are needed.
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Algebra.Com's Answer #25604 by vidhyak(98)\"\" \"About 
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\n" ); document.write( "4 shovels of sand are used for every 5 shovels of gravel\r
\n" ); document.write( "\n" ); document.write( "4s : 5g\r
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\n" ); document.write( "\n" ); document.write( "How many shovels of gravel are needed for 64 shovels of sand?
\n" ); document.write( "64s : Xg\r
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\n" ); document.write( "\n" ); document.write( "We need to calculate the value of X
\n" ); document.write( "4s : 5g
\n" ); document.write( "64s : Xg\r
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\n" ); document.write( "\n" ); document.write( "4s.Xg = 5g.64s
\n" ); document.write( "X = (5g*64s)/4sg\r
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\n" ); document.write( "\n" ); document.write( "= 5*64/4
\n" ); document.write( "= 5*16
\n" ); document.write( "= 80\r
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\n" ); document.write( "\n" ); document.write( "___80____shovels of gravel are needed.
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