Originally Posted by

**Natasha1** So friends go to the cinema and buy 1 large tub of popcorn, 4 fizzy drinks and 10 packets of crisps. The bill comes to £10.89

Some other friends go to the cinema and buy 1 large tub of popcorn, 3 fizzy drinks and 7 packets of crisps. The bill comes to £8.64

How much is 1 large tub of popcorn, 1 fizzy drink and 1 packet of crisps?

I got:

1P + 4D + 10C = 10.89

1P + 3D + 7D = 8.64

When I subtract one from the other I get: 1D + 3C = £2.25

How do I get the prices for 1 large tub of popcorn, 1 fizzy drink and 1 packet of crisps from there??

Many thanks for any help.