document.write( "Question 683963: The ratio of boys to girls at an elementary school is 3 to 4. If there are 580 students, how many girls are in the school? \n" ); document.write( "
Algebra.Com's Answer #423852 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! The ratio of boys to girls at an elementary school is 3 to 4. \n" ); document.write( " If there are 580 students, how many girls are in the school? \n" ); document.write( ": \n" ); document.write( "This total (580) for students can not have a 3:4 ratio \n" ); document.write( "I will assume a value of 581 students to make the problem work \n" ); document.write( ": \n" ); document.write( "Let x = the multiplier \n" ); document.write( "then \n" ); document.write( "3x = no. of boys \n" ); document.write( "4x = no. or girls \n" ); document.write( ": \n" ); document.write( "3x + 4x = 581 \n" ); document.write( "7x = 581 \n" ); document.write( "x = 581/7 \n" ); document.write( "x = 83 is the multiplier \n" ); document.write( "then \n" ); document.write( "4*83 = 332 girls \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check this by finding the number of boys; 3*83 = 249 boys \n" ); document.write( "249 + 332 = 581 \n" ); document.write( " |