David drove a distance (d) of 187 km, correct to 3 significant figures.
He used 28 litres of petrol (p), correct to 2 significant figures.
The petrol consumption (c) of a car, in km per litre, is given by the formula
с
d
р
By considering bounds, work out the value of c for David's journey
to a suitable degree of accuracy.
You must show all your working and give a reason for your final answer.
Answers
Answered by
0
Answer:
6.68 km/liter
Step-by-step explanation:
David drove a distance by his car (d) = 187 km
He used the amount of petrol (p) = 28 liters
The petrol consumption (C) of a car in km per liter = \frac{d}{p}
p
d
Consumption = \frac{187}{28}
28
187
= 6.67857 ≈ 6.68 km per liter
Mileage of David's car was 6.68 km/liter
To check :
In 1 liter petrol he traveled = 6.68 km
In 28 liter petrol he traveled = 6.68 × 28
= 187.04 ≈ 187 km
Learn more to calculate mileage of the car :
Answered by
0
Answer:
Step-by-step explanation:
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