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Darya [45]
2 years ago
10

A car can travel 78 km using 6 litres of petrol. By using ratio and proportion methrfind how much petrol will be needed for trav

elling a distance of 325 km
with solution ​
Mathematics
2 answers:
taurus [48]2 years ago
8 0

Answer:

So this is the correct ans

Anna71 [15]2 years ago
6 0

Answer:

25 liters of petrol

Step-by-step explanation:

78 km = 6 liters

So the ratio is 78:6

Let's find the distance per liter:

78/6 = 13

So you travel 13 km per liter

To find the amount of liters for 325 km, you divide 325 by 13:

325/13 = 25

You would need 25 liters of petrol to travel 325 km.

-Chetan K

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To start solving this, i realized that there was a difference in the units given and the units asked for in the answer, so I converted 2.937 grams to 2,397 mg. It is given that there are 2.145 mg of the drug in 1.716 mL, so set up the equation 2.145 / 1.716 = 2,937 / x, where x is the mL of the drug needed. Cross multiply to get 5039.892 = 2.145 x. Divide by 2.145 and get 2,349.6‬ ml

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