Mathematics, 23.03.2021 19:50 jumana3
A car travelled 130 km from London to Swindon.
The car used x litres of petrol for this journey.
(a) Write down an expression, in terms of x, for the average number of kilometres the car travelled for each litre of petrol on its journey from London to Swindon.
On the return journey from Swindon to London, the car travelled 130 km and used
(x β2) litres of petrol.
(b) Write down an expression, in terms of x, for the average number of kilometres the car travelled for each litre of petrol on the return journey.
On the return journey, the average number of kilometres the car travelled for each litre of petrol was 5 km greater than the average number of kilometres the car travelled for each litre of petrol on its journey from London to Swindon.
(c) Write down an equation in x for the information about the average numbers of
kilometres the car travelled for each litre of petrol.
(d) Solve your equation to find the value of x to 3 significant figures
Answers: 3
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A car travelled 130 km from London to Swindon.
The car used x litres of petrol for this journey.
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