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2 years ago

A certain type of chocolate bar is sold as follows.

Mathematics

1 answer:

Scrat [10]2 years ago

5 0

Answer:

Step-by-step explanation:

You would never buy a 10-pack, because two 5-packs cost less.

To buy 3 bars you need a single bar and a pair of single bars for £0.82 + £0.82+ £0.41 = £2.05

To buy 30 bars you need 3 pairs of 5-bar packs = 3×£5.75 = £17.25

To buy the remaining 5 bars you need one 5-bar pack = £3

cost = £2.05 + £17.25 + £3 = £22.30

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Step-by-step explanation:

hi, with this we can just do substitution (substitute x for y+3)

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Step-by-step explanation:

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