3. The carnival sells adult tickets for $2 each and child's tickets for $1.50 each. Last month, they sold a
total of 350 tickets, and received $600 in sales. How many adult tickets were sold last month?

Respuesta :

Answer:

a = 150

Step-by-step explanation:

you can set up a system of equations:

let c = child ticket

let a = adult ticket

a + c = 350

2a + 1.5c = 600

the system above can be solved by substituting:

a = 350-c or

c = 350-a

if we use 'c' we get:

2a + 1.5(350-a) = 600

2a + 1.5(350) - 1.5a = 600

0.5a + 525 = 600

0.5a = 75

a = 75/0.5

a = 150

therefore, 150 + c = 350 so 'c' must equal 200

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