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NISA [10]
4 years ago
15

A car consumes a gallon of petrol for every 30km drive. The driver of the car set out on a journey of 420km with 10 gallons of p

etrol in the fuel tank. (I) How many more gallons of petrol we be needed to complete the journey. (ii) Find the cost of petrol used for the journey of 420km if a gallon of petrol cost Ghc 5.50​
Mathematics
1 answer:
madam [21]4 years ago
5 0

I) 4 Gallons

II) $77

Step-by-step explanation:

30km 1 gallon

420km ?

420 ÷ 30 = 14

? = 40

So, 4 gallons more will be needed to complete the journey.

1 gallon $5.50

14 gallon $?

14 x $5.50 = $77

The cost of the petrol is $77

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