document.write( "Question 999285: A store sells 2 cans of coffee for $18.50. The cost of coffee varies directly with the number of cans. Write the proportional equation that represent the relationship between the cost of ground coffee y and the number of cans of coffee x \n" ); document.write( "
Algebra.Com's Answer #616955 by Cromlix(4381) You can put this solution on YOUR website! Hi there, \n" ); document.write( "coffee varies directly with the number of cans. \n" ); document.write( "C = kc (C = Coffee: c = cans) \n" ); document.write( "Using the values to establish 'k' \n" ); document.write( "the constant of proportionality. \n" ); document.write( "C = kc \n" ); document.write( "$18.50 = k2 \n" ); document.write( "k = $18.50/2 \n" ); document.write( "k = $9.25 \n" ); document.write( "Equation \n" ); document.write( "C = $9.25c \n" ); document.write( "Hope this helps:-) \n" ); document.write( " |