document.write( "Question 921894: I really need your help in solving this problem. I appreciate your time and efforts. Have a terrific evening :) Here is the question?\r
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document.write( "A varies directly as z. If A = 30 when z = 5, find A when z = 9 \n" );
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Algebra.Com's Answer #559255 by richard1234(7193)![]() ![]() You can put this solution on YOUR website! Just a simple proportion:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "30/5 = A/9 --> A = 54\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Another way to think of it, A varies directly as z <--> A = kz where k is a constant. Solving 30 = k*5 you get k = 6. When z = 9, A = 6*9 = 54. \n" ); document.write( " |