document.write( "Question 43073: I need to check my math on this one. I always put the answers in the wrong order:\r
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document.write( "Two rainstorms occurred in one week in a certain area. The first storm lasted 20 hours, and the second storm lasted 40 hours, for a total 1800mL of rain. What was the rate of rainfall for each of the two storms if the sum of the two rates was 55mL per hour?\r
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document.write( "1st storm ____ mL per hour\r
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document.write( "2nd storm ____ mL per hour \n" );
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Algebra.Com's Answer #28076 by Paul(988)![]() ![]() ![]() You can put this solution on YOUR website! Let the first rainfall be x \n" ); document.write( "Let the second rainfall be y \n" ); document.write( "EQUATION 1: \n" ); document.write( "x+y=55 \n" ); document.write( "y=55-x (subsitution) \n" ); document.write( "EQUATION 2: \n" ); document.write( "20x+40y=1800 \n" ); document.write( "20x+40(55-x)=1800 \n" ); document.write( "-20x=-400 \n" ); document.write( "x=20 \n" ); document.write( "y=55-20 \n" ); document.write( "y=35 \n" ); document.write( "Hence, the first rainfall was 20mlph and the second one was at 35mlph. \n" ); document.write( "Paul. \n" ); document.write( " |