8 t-shirts and a hat costs £42.00 3 t-shirts and a hat costs £17.00. How much does a t-shirt cost? How much does a hat cost?
Let the cost of a t-shirt = S
Let the cost of a hat = H
8S + H =42
3S + H =17 subtract the 2nd from the 1st.
5S = 25 divide both sides by 5
S = 25/5
S = 5 Pounds - the cost of 1 t-shirt.
[3x5] + H =17
15 + H = 17 subtract 15 from both sides
H =17 -15
H = 2 Pounds the cost of 1 hat.
Let the cost of a t-shirt = S
Let the cost of a hat = H
8S + H =42
3S + H =17 subtract the 2nd from the 1st.
5S = 25 divide both sides by 5
S = 25/5
S = 5 Pounds - the cost of 1 t-shirt.
[3x5] + H =17
15 + H = 17 subtract 15 from both sides
H =17 -15
H = 2 Pounds the cost of 1 hat.