The distance, d km, travelled by a car is directly proportional to the amount, a litres, of petrol
used. when a = 5, d = 270
a) express d in terms of a.
b) find the value of d when a = 4.5
c) how many litres of petrol are needed for a journey of 324 km?

D=54A

When A is 4.5 D=54×4.5 D=243

324=54×A A=324/54 A=6litre

Step-by-step explanation:

D©A

D=k×A

270=K×5

K=270/5 k=54

D=54×A

When A is 4.5 D=54×4.5 D=243

324=54×A A=324/54 A=6litre

step-by-step explanation:

20% of 120 is 24. if you subtract 24 from 120 you get 96

b.my answer is b.

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