document.write( "Question 144849: a group of 80 people attend a ball game. there were four times as many children as adults in the group. write a system of equations that you could use to set up this problem, where a is the number of adults and c is the number of children in the group. solve the system of equations for c, the number of childern in the group \n" ); document.write( "
Algebra.Com's Answer #105561 by shahid(44)![]() ![]() ![]() You can put this solution on YOUR website! 80 people are there so first equation is \n" ); document.write( "a+c=80....(1) \n" ); document.write( "second equ formed by condition is \n" ); document.write( "c=4a ....(2) subtacting both equations \n" ); document.write( "a=80-4a \n" ); document.write( "a+4a=80 \n" ); document.write( "5a=80 \n" ); document.write( "a=80/5 \n" ); document.write( "a=16 so c=4(16)=64 there were 64 children in the group \n" ); document.write( " \n" ); document.write( " |