Mathematics, 14.04.2021 18:10 nofer

The cost c of petrol is directly proportional to the number of litres L. 8 litres of petrol cost £10.
a Find the formula connecting cost c of petrol and number of L.
b Work out the cost of 50 litres of petrol

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The cost c of petrol is directly proportional to the number of litres L. 8 litres of petrol cost £1...