document.write( "Question 962903: mann school has 650 pupils. 60% are boys. how many boys are at mann school? \n" ); document.write( "

Algebra.Com's Answer #588300 by LinnW(1048) $\"\"$ $\"About$

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$\"%28number+of+boys%29%2F%28number+of+pupils%29\"$ = 60% = $\"60%2F100\"$
\n" ); document.write( " $\"%28number+of+boys%29%2F%28650%29\"$ = $\"60%2F100\"$
\n" ); document.write( "Let n = number of boys
\n" ); document.write( " $\"%28n%29%2F%28650%29\"$ = $\"60%2F100\"$
\n" ); document.write( "do cross products
\n" ); document.write( "100*n = 60*650
\n" ); document.write( "100n = 39000
\n" ); document.write( "divide each side by 100
\n" ); document.write( "n = 390
\n" ); document.write( "So we have 390 boys\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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