Question

2 t-shirts and 3 hats costs £12.

5 t-shirts and 4 hats costs £23.
Find the cost of a t-shirt.
Find the cost of a hat

Answer 1

Cost of tshirt = £7.29

Cost of what = £0.86

Explanation:

2t +3h = 12; 10t + 15h = 60

5t + 4h =33; 10t + 8h = 66

15h -8h = -6

7h = -6; h = -6/7; h = 0.86

2t +3(-6/7) =12

14t -18 = 84

14t = 102; t = 102/ 14; t=7.29