Question

Last night you went to a restaurant, and the bill for 3 adult meals and 2 children's meals was £73. Last week you went to the same restaurant and paid £89 for 2 adult meals and 5 children's meals. Let a = cost of an adult meal, and c = cost of a child meal. Form an equation for last night's meal: = Form an equation for last week's meal:

Answer 1

Last night: 3a + 2c = 73 (last night)

Last week: 2a + 5c = 89

Answer 2

Explanation:

3a + 2c = 73 (last night)

2a + 5c = 89 (last week)