Ignore what i wrote but can someone me with this. (4 mark question) x

£16.20

Step-by-step explanation:

If F is litres of fruit juice, and L is litres of lemonade, then we can write a proportion:

F / L = 1 / 3

Cross multiply:

L = 3F

The total volume is 16 litres, so:

F + L = 16

Substitute and solve:

F + 3F = 16

4F = 16

F = 4

L = 12

There are 4 litres of fruit juice and 12 litres of lemonade.

The total cost is:

C = 1.80 F + 0.75 L

C = 1.80 (4) + 0.75 (12)

C = 16.2

The cost is £16.20.