Posted by Carolina on .
Three times as many children as adults attend a concert on Saturday. An adult's ticket cost $7 and a child's ticket cost $3. The theater collected a total of $6,000. How many people bought tickets?

Math 
Reiny,
number of adults  x
number of children  3x
7x + 3(3x) = 6000
solve for x 
Math 
Anonymous,
375

Math 
ronibel ortiz,
375