the price of admission at a movie theatre is $6 for an adult an $4 for a child. in one day, the movie theatre sold 80 tickets and made $420 how many adults and children bought tickets to the movie theatre that day

have 50 tickets is adult, 30 is child.

Step-by-step explanation:

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