Question

Urgent please help....

At the city museum , child admission is 5.50 and adult admission is 8.90. On Thursday, four times as many adult tickets were sold for a total sales of 943.30. How many child tickets were sold that day?

Answer 1

23 child tickets

Explanation:

Let

x ----> number of child tickets sold

y ----> number of adult tickets sold

we know that

`5.30x+8.90y=943.30` ----> equation A

`y=4x` ----> equation B

Solve the system by substitution

substitute equation B in equation A

`5.50x+8.90(4x)=943.30`

solve for x

`5.50x+35.6x=943.30`

`41.1x=943.30`

`x=23`