document.write( "Question 167604: I have been trying to get this and am having trouble. is my answer correct?\r
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document.write( "If y varies inversley as x and y=1.5 when x=8, find y when x=20.\r
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document.write( "y=k/x
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document.write( "1.5 = k/20
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document.write( "(20) 1.5 = k
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document.write( "30 = k\r
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Algebra.Com's Answer #123505 by Mathtut(3670)![]() ![]() ![]() You can put this solution on YOUR website! so yx=k therefore 1.5(8)=12 so 12 is our constant k\r \n" ); document.write( "\n" ); document.write( "now if you have x=20 and want to find y --->you must multiply x time y and make it equal to our constant. hence 20(y)=12(our constant)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "another way of doing this is to set up a proportion of \n" ); document.write( "an inverted relationship proportion \n" ); document.write( " |