document.write( "Question 613583: If y varies directly as x, what is the value of y in these ordered pairs? (3, 12) and (24, y) \n" ); document.write( "
Algebra.Com's Answer #386090 by vleith(2983)\"\" \"About 
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You are told y varies directly with x. So you can write the equation as \"y+=+Ax\" whre A is a constant. You are then given two points. Use the first point to solve for A. Then use the information in the second point to solve for y. As follows\r
\n" ); document.write( "\n" ); document.write( "\"y+=+Ax\" plug int he coordinates from the first point and solve for A
\n" ); document.write( "\"12+=+A+%2A+3\"
\n" ); document.write( "\"12%2F3+=+A\"
\n" ); document.write( "\"4+=+A\"\r
\n" ); document.write( "\n" ); document.write( "plug A into the base equation to get \"y+=+4x\"
\n" ); document.write( "\"y+=+4%2A24\" now plug in the second value for x and solve for y
\n" ); document.write( "\"y+=+96\"
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