The school that Perry goes to is selling tickets to a spring musical. On the first day of ticket salesthe school sold 2 adult tickets and 8 child tickets for a total of $112. The school took in $160 onthe second day by selling 6 adult tickets and 8 child tickets. Find the price of an adult ticket andthe price of a child ticket.

Adult ticket: $12

Child ticket: $11

answer: the value of x is 7cm

step-by-step explanation:

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional