Answer:
The cost for 1 adult is $27.00 and the cost for 1 child is $11.00.
Explanation:
Let c = the cost of a child
Let a = the cost of an adult
5a + 3c = 135 → multiply by -2 → -10a -6c = -270
3a + 2c = 81 → Multiply by 3 → (+) 9a + 6c = 243
-a = -27
a = 27
The cost per adult is $27.00.
Substitute 27 into either of the original equations for a to solve for c.
3a + 2c = 81
3a + 2(27) = 81
3a + 54 = 81 Subtract 54 from both sides
3a = 33 Divide both sides by 3
a = 11
The cost per child is $11.00.
Helping in the name of Jesus.