a car uses 25 litres of petrol to travel 200 miles. how many litres of petrol will the car use to travel 450 miles?
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Car used 25/200= .125 liters per one mile
For 450 liles car will used:
450* .125= 56.25 liters
Or:
(450/200)*25= 2.25*25= 56.25 liters
To find out how many liters of petrol the car will use to travel 450 miles, we can use a proportion to set up a ratio.
We know that the car uses 25 liters to travel 200 miles. We can express this as the ratio of liters to miles: 25/200.
To find out how many liters the car will use to travel 450 miles, we can set up another ratio with the same proportion. Let's call the unknown liters X:
25/200 = X/450
To solve for X, we can cross-multiply and then divide:
25 * 450 = X * 200
11250 = 200X
Divide both sides by 200 to solve for X:
11250/200 = X
56.25 = X
Therefore, the car will use approximately 56.25 liters of petrol to travel 450 miles.