document.write( "Question 946624: Please help - its my daughters math and I can not figure this out to help her!! Thanks!
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document.write( "Sergio walked to and from school on 3/5 of the days in one month. He got a ride to school on ⅞ of remaining days. On the one remaining day he stayed home with a cold. How many school days were there that month? \n" );
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Algebra.Com's Answer #577497 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Sergio walked to and from school on 3/5 of the days in one month. He got a ride to school on 7/8 of remaining days. On the one remaining day he stayed home with a cold. How many school days were there that month? \n" ); document.write( "------------------- \n" ); document.write( "d = # of school days \n" ); document.write( "--- \n" ); document.write( "(3/5)d + (7/8)(d - (3/5)d) + 1 = d \n" ); document.write( "3d/5 + (7/8)*(2d/5) + 1 = 3d/5 + 7d/20 + 1 = d \n" ); document.write( "Multiply by 20 to eliminate fractions \n" ); document.write( "12d + 7d + 20 = 20d \n" ); document.write( "19d + 20 = 20d \n" ); document.write( "d = 20 \n" ); document.write( "--> 20 days \n" ); document.write( " \n" ); document.write( " |