The local high school is having a talent show. on monday they sale 5 children tickets and 3 adult tickets for $25 on tuesday the

Question

Katen [24]

3 years ago

15

The local high school is having a talent show. on monday they sale 5 children tickets and 3 adult tickets for $25 on tuesday the

y sale 4 children tickets and 4 adult tickets for $28. how much does a child's ticket cost?

Mathematics

1 answer:

weeeeeb [17] · Answer 1 · 2022-03-19T09:25:45+03:00

weeeeeb [17]3 years ago

6 0

Let c be children tickets and a adult tickets

5c+3a=25
4c+4a=28

Multiply all of the top row by -4
Multiply all of the bottom row by 3

-20c-12a=-100
12c+12a=84
a's cancel so you have
-8c= -16
Divide by -8
C= $2
Children tickets = $2