Answer:
1. The journey will use 15.52 liters of petrol.
2. The approximate cost of petrol to hotel will be 2155.73 pence
3. The whole journey will take 3.36 hours
Explanation:
Given that:
Distance of hotel from house = 163 miles
Distance covered by per liter = 10.5 miles
1/ The Hotel is 163 miles from your house.your car travels 10.5 miles for every litre of petrol. Work out approximately how many litres of petrol the journey will use.
Petrol used for total distance =
![(Total\ distance)/(Distance\ per\ liter)](https://img.qammunity.org/2021/formulas/mathematics/college/9lporhzj5abskodpezsktczcqf7awq7091.png)
Petrol used for total distance =
![(163)/(10.5)=15.52\ liters](https://img.qammunity.org/2021/formulas/mathematics/college/5cnqydodmhdamhc3nvc3nzer219gihunhc.png)
The journey will use 15.52 liters of petrol.
2/The price of petrol is 138.9 pence per litre Work out the approximate cost for the petrol to the hotel .
Cost of per liter petrol = 138.9 pence
Cost for petrol to hotel = Petrol used for journey * Price per liter
Cost of petrol = 138.9 * 15.52 = 2155.73 pence
The approximate cost of petrol to hotel will be 2155.73 pence
3/ you expect to travel 50 miles in each hour of a jurney how long the whole journey should take.
Distance covered per hour = 50 miles
Time taken in whole journey =
![(total\ distance)/(distance\ per\ hour)](https://img.qammunity.org/2021/formulas/mathematics/college/g1j6169usy3qh1hbybar1nzj7zh5eum64h.png)
Time taken in whole journey =
![(168)/(50)](https://img.qammunity.org/2021/formulas/mathematics/college/5tincgcqaa0vizhdimvh8vx7poyoo2wy6v.png)
Time taken in whole journey = 3.36 hours
The whole journey will take 3.36 hours
Hence,
1. The journey will use 15.52 liters of petrol.
2. The approximate cost of petrol to hotel will be 2155.73 pence
3. The whole journey will take 3.36 hours