document.write( "Question 1032644: A 30 oz can of lemonade drink mix costs $1.80. At that rate, how much will a 21 oz can cost? \n" ); document.write( "
Algebra.Com's Answer #647294 by fractalier(6550)\"\" \"About 
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We can solve this using a proportion:
\n" ); document.write( "\"30%2F1.80+=+21%2Fx\"
\n" ); document.write( "Now cross-multiply and get
\n" ); document.write( "30x = 21(1.80)
\n" ); document.write( "30x = 37.80
\n" ); document.write( "Now divide by 30 and get
\n" ); document.write( "x = $1.26
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