In November Hillary drove 580 miles in her car the car travelled 33.5 miles for each gallon of petrol used

Petrol cost £1.09 per litre

1 gallon = 4.55 litres

Work out the cost of the petrol the car used in November

T = £85.87

the cost of the petrol the car used in November is £85.87

Step-by-step explanation:

Given;

In November Hillary drove 580 miles in her car;

Distance travelled d = 580 miles

the car travelled 33.5 miles for each gallon of petrol used;

Fuel consumption rate r = 33.5 miles per gallon

Number of gallons N consumed by the car is;

N = distance travelled/fuel consumption rate

N = d/r = 580/33.5 = 17.3134 gallons

Given that;

Petrol cost £1.09 per litre

Cost per litre c = £1.09

1 gallon = 4.55 litres

Converting the amount of fuel used to litres;

N = 17.3134 gallons * 4.55 litres per gallon

N = 78.77612 litres

The total cost T = amount of fuel consumption N * fuel cost per litre c

T = N * c

T = 78.77612 litres * £1.09 per litre

T = £85.87

the cost of the petrol the car used in November is £85.87