document.write( "Question 767542: A survey conducted in a school showed that 65% of the students walked to school. The remaining students took buses to school. The ratio of students who took school buses to those who took public buses was 4:3. There were 360 more students who walked than who took buses. How many students took public buses to school? \n" ); document.write( "
Algebra.Com's Answer #467681 by reviewermath(1029)![]() ![]() You can put this solution on YOUR website! Q: \n" ); document.write( "A survey conducted in a school showed that 65% of the students walked to school. The remaining students took buses to school. The ratio of students who took school buses to those who took public buses was 4:3. There were 360 more students who walked than who took buses. How many students took public buses to school? \n" ); document.write( "------------------------------------------------------------------------- \n" ); document.write( "A: \n" ); document.write( "Let x = number of students who took buses \n" ); document.write( "therefore, x + 360 = number of students who walked \n" ); document.write( "total number of students surveyed = x + (x + 360) = 2x + 360 \n" ); document.write( "0.65(2x + 360) = x + 360 \n" ); document.write( "1.3x + 234 = x + 360 \n" ); document.write( "1.3x - x = 360 - 234 \n" ); document.write( "0.3x = 126 \n" ); document.write( "x = 126/0.3 = 420 \n" ); document.write( "If 4k = number of students who took school buses, then \n" ); document.write( "3k = number of students who took public buses \n" ); document.write( "4k + 3k = 420 \n" ); document.write( "7k = 420 \n" ); document.write( "k = 420/7 = 60 \n" ); document.write( "3k = 180 \n" ); document.write( "ANSWER: The number of students who took public buses to school is |