document.write( "Question 72969: a fast food stand sells muffins and cookies. last monday the ratio of the number of muffins to the number of cookies sold was 16 to 13. a total of 145 muffins and cookies were sold. How many cookies were sold? \n" ); document.write( "
Algebra.Com's Answer #52193 by ptaylor(2198)\"\" \"About 
You can put this solution on YOUR website!
Let x= number of cookies sold
\n" ); document.write( "then (145-x)=number of muffins sold\r
\n" ); document.write( "\n" ); document.write( "We can now set up a ratio\r
\n" ); document.write( "\n" ); document.write( "16 is to 13 as x is to (145-x) and this can be written as follows:\r
\n" ); document.write( "\n" ); document.write( "\"16%2F13=x%2F%28145-x%29\" Now we get rid of fractions by cross-multiplying:\r
\n" ); document.write( "\n" ); document.write( "\"16%28145-x%29=13x\" get rid of parens
\n" ); document.write( "\"2320-16x=13x\" add 16x to both sides
\n" ); document.write( "\"2320-16x%2B16x=13x%2B16x\"
\n" ); document.write( "\"2320=29x\" divide both sides by 29
\n" ); document.write( "\"x=80\"---------------------------------------number of cookies sold
\n" ); document.write( "\"145-x=145-80=65\" ----number of muffins sold\r
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\n" ); document.write( "\n" ); document.write( "CK
\n" ); document.write( "\"16%2F13=80%2F65\" divide right side numerator and denominator by 5
\n" ); document.write( "\"16%2F13=16%2F13\"\r
\n" ); document.write( "\n" ); document.write( "Hope this helps----ptaylor\r
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