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

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in geometry, parallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. by extension, a line and a plane, or two planes, in three-dimensional euclidean space that do not share a point are said to be parallel.