Question

At the state fair, tickets for children cost $3.75 and tickets

for adults cost $6.75. How many children’s tickets were purchased
if 20 tickets total were bought for $90?

Answer 1

$3.75c + $6.75(20 - c) = $90.00

$3.75c + $135.00 - $6.75c = $90.00

$3.00c = $45.00

c = 15 children's tickets