Question

4 t-shirts and a hat costs £31.00

Answer 1

Answer:

t- shirt cost £7, hat cost £3

Step-by-step explanation:

let t represent cost of t- shirt and h represent cost of hat , then

4t + h = 31  → (1)

2t + h = 17 → (2)

Subtract (2) from (1) term by term to eliminate h

(4t - 2t) + (h - h) = 31 - 17 , that is

2t = 14 ( divide both sides by 2 )

t = 7

Substitute t = 7 into either of the 2 equations and solve for h

Substituting into (1)

4(7) + h = 31

28 + h = 31 ( subtract 28 from both sides )

h = 3

t- shirt cost £7 and hat cost £3

Answer 2

Answer:

1 T-Shirt Costs £7, 1 Hat Costs £3

Step-by-step explanation:

Set t-shirts price is x.l

set hats price is yl

4x+y=31

2x+y=17

y=31-4x

y=17-2x

31-4x=17-2x

14=2x

x=7.

4 x 7 + y=31

y=3.

a t-shirt cost £ 7 . a hat costs  £3