document.write( "Question 176333: Two rainstorms occured in one week in a certain area in the first storm 30mL of rain fell per hour, and in the second storm 15 mL of rain fell per hour. Rain fell that week for a total of 45 hours for a total rain fall of 975 mL how long was each storm. \r
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Algebra.Com's Answer #131421 by MathTherapy(10552)\"\" \"About 
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Two rainstorms occured in one week in a certain area in the first storm 30mL of rain fell per hour, and in the second storm 15 mL of rain fell per hour. Rain fell that week for a total of 45 hours for a total rain fall of 975 mL how long was each storm. \r
\n" ); document.write( "\n" ); document.write( "Time of 1st storm + time of 2nd storm = total time rain fell\r
\n" ); document.write( "\n" ); document.write( "f + s = 45
\n" ); document.write( "f(30) + s(15) = 975\r
\n" ); document.write( "\n" ); document.write( " f + s = 45(-30)
\n" ); document.write( "30f + 15s = 975
\n" ); document.write( "-30f - 30s = - 1350
\n" ); document.write( " - 15s = - 375
\n" ); document.write( " s = 25\r
\n" ); document.write( "\n" ); document.write( "f + 25 = 45
\n" ); document.write( "f = 20\r
\n" ); document.write( "\n" ); document.write( "The 1st storm lasted 20 hours, while the 2nd storm lasted 25 hours \n" ); document.write( "
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