Answer:
(50, 30); 50 adult tickets and 30 child tickets
Step-by-step explanation:
just took the test.hope this helps :)
have 50 tickets is adult,30 is child.
we can think all 80 tickets is adult
then80*6is 480,then use 480-420 equal 60
after that we use differen price 6-4=2
so 60/2=30 this child ticket
second we can 80-30=50 50is aduli ticket.
got it?
check:
50*6+30*4
=300+120
=480
X = 3
(3-2)(3+10)
(1)(13) =
13
