document.write( "Question 815200: 9/10 of the number of cows is the same as 4/5 the number of sheeps. If there are 225 sheeps, find the total number of cows and sheeps. \n" ); document.write( "

Algebra.Com's Answer #490764 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"+c+\"$ = number of cows
\n" ); document.write( "Let $\"+s+\"$ = number of sheep
\n" ); document.write( "-----------------------
\n" ); document.write( " $\"+%289%2F10%29%2Ac+=+%284%2F5%29%2As+\"$
\n" ); document.write( " $\"+%289%2F10%29%2Ac+=+%288%2F10%29%2As+\"$
\n" ); document.write( "Multiply both sides by $\"+10+\"$
\n" ); document.write( " $\"+9c+=+8s+\"$
\n" ); document.write( "-----------
\n" ); document.write( " $\"+s+=+225+\"$
\n" ); document.write( "By substitution:
\n" ); document.write( " $\"+9c+=+8%2A225\"$
\n" ); document.write( " $\"+9c+=+1800+\"$
\n" ); document.write( " $\"+c+=+200+\"$
\n" ); document.write( "and
\n" ); document.write( " $\"+s+%2B+c+=+225+%2B+200+\"$
\n" ); document.write( " $\"+s+%2B+c+=+425+\"$
\n" ); document.write( "There are 425 cows and sheep
\n" ); document.write( " \n" ); document.write( "

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