04-10-2021
Mathematics

contestada

A cinema sells adult tickets and child tickets.
The total cost of 3 adult tickets and 1 child ticket is €30.
The total cost of 1 adult ticket and 3 child tickets is €22.
Work out the cost of an adult ticket and the cost of a child ticket

Respuesta :

04-10-2021

Answer:

€13

Step-by-step explanation:

Let A be adult and child be C

3A + 1C = €30 (equation 1 )

1A + 3C = €22 ( Equation 2 )

Equation 1 + equation 2

4A +4C = €52

1A + 1C = €52 ÷4

= €13

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