The CS Leaguehas set a budget of $3840 for soccer balls.High quality balls cost$36 each while lower quality practice balls cost $20 each.If 160 balls had to be purchased how many balls of each type can bebought to exactly use up the budgetted amount? 2. Originally Posted by candace The CS Leaguehas set a budget of$3840 for soccer balls.High quality balls cost$36 each while lower quality practice balls cost$20 each.If 160 balls had to be purchased how many balls of each type can bebought to exactly use up the budgetted amount?
Well we have to solve system of equations.

Lets say h is total number of high quality balls and l is total number of low quality balls.
So h+l must be 160.

So we can set system:
36*h + 20*l = 3840
h+l=160

36*h + 20*l = 3840
h=160-l

36(160-l) + 20*l = 3840
5760-36l+20l=3840
5760-3840=36l-20l
1920=16l
l=120

So h+120=160
h=40

So we can by 40 high quality balls and 120 low quality balls.