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3 years ago

Please help

Mathematics

2 answers:

Orlov [11]3 years ago

6 0

1. 163/10.5 = 15.5 litres
2. 138.9 * 15.5 = 2,152 pence which is 21$
3.163/50 =3.2 hours

Tema [17]3 years ago

5 0

Answer:

The answers are:

15.523 liters of petrol will be used.
The cost of petrol will be: 2156.2 pence
The journey will take 3 hours and 16 minutes approximately

Step-by-step explanation:

Given:

Distance of Hotel and car = 163 miles

Distance travelled by car per liter = 10.5 miles

The number of liters will be obtained by dividing the total distance by distance travelled in one liter.

So,

$number\ of\ liters = \frac{163}{10.5} = 15.523\ liters$

<u>2. Cost for petrol:</u>

Cost of petrol per liter = 138.9 pence per liter

Then the total cost of petrol will be:

$Total\ cost = 138.9*15.523 = 2156.1447 => 2156.2\ pences$

<u>3. Time taken for journey</u>

Distance travelled in an hour = speed = 50 miles per hour.

The speed is given by the formula:

$speed = \frac{distance}{time}$

Putting the values

$50 = \frac{163}{t}\\t = \frac{163}{50}\\t = 3.26\ hours$

It will take: 3 hours and 0.26*60 = 15.6 minutes => 3 hours 16 minutes

Hence,

The answers are:

15.523 liters of petrol will be used.
The cost of petrol will be: 2156.2 pence
The journey will take 3 hours and 16 minutes approximately

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