A delivery company has 18 vehicles in its fleet. It has 8 vans and 10 trucks.

All 18 vehicles are on the road every working day.

The company is reviewing its fuel expenses and therefore

gathers some information about each type of vehicle.

Average distance Average distance

Type of vehicle

travelled ber day (in km) travelled per litre (in km) All the vehicles use the

Van

198

9

same type of fuel at

£1.29 per litre.

Truck

620

6.2

Use this information to work out the total fuel bill for 1 working day.

You must show all your working.

£1517.04

Step-by-step explanation:

The fuel expenses for the vans will be calculated as:

Vans:

Since the average distance travelled per day is 198km and the average distance travelled per litre is 9km, the van would use:

= 198/9

= 22 litres

Since there are 8 vans, they'll use:

= 22 × 8 = 176 liters

Trucks:

Since the average distance travelled per day is 620km and the average distance travelled per litre is 6.2km, the truck would use:

= 620/6.2

= 100

Since there are 10 trucks, they'll use:

= 100 × 10 = 1000 liters

The amount of liters for both the van and the truck will be:

= 176 liters + 1000 liters

= 1176 liters

The fuel cost will then be:

= 1176 × 1£1.29

= £1517.04

h who knows

step-by-step explanation:

answer: expected value of x = 1.0

step-by-step explanation:

p(x=0) = 0.25

p(x=1) = 0.50

p(x=2) = 0.25

expected value for x = 0×0.25 + 1×0.5 + 2×0.25 = 1.0