document.write( "Question 994591: in a mixture of concrete there are three lb of cement mix for each pound of gravel .if the mixture contains a total of 76 lb of these two ingredients how many pounds of gravel are there? \n" ); document.write( "

Algebra.Com's Answer #613625 by lwsshak3(11628) $\"\"$ $\"About$

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in a mixture of concrete there are three lb of cement mix for each pound of gravel .if the mixture contains a total of 76 lb of these two ingredients how many pounds of gravel are there?
\n" ); document.write( "let x=amt of gravel in mixture
\n" ); document.write( "76-x=amt of cement in mixture
\n" ); document.write( "(76-x)/x=3
\n" ); document.write( "3x=76-x
\n" ); document.write( "4x=76
\n" ); document.write( "x=19
\n" ); document.write( "76-x=57
\n" ); document.write( "amt of gravel in mixture=19 lbs \n" ); document.write( "

\n" );