Question

Tickets to see a movie cost $5 for children and $8 for adults. The equation 5x + 8y =

80 represents the number of children (x) and adults (y) who can see the movie with
$80. If no adults see the movie, how many children can see the movie with $80?
a) 13
b) 16
c) 6
d) 10

Answer 1

16 chlildren

Explanation:

5x+8y=80

y=0

5x=80

x=8-0/5=16

Answer 2

Explanation:

The answer is B.16

Since the equation is 5x+8y=80

There are no parents so it equation will turn into 5x+8(0)=80, AKA, 5x=80

Using algebra, 5x=80 will x=80/5

which is 16