Suppose you drive your car on a perfectly flat road at a constant speed with no wind. In this case, the amount of fuel, y, (in litre) needed is directly proportional to the distance travelled, r (in kilometre). (a) If the distance travelled increase, what can we say about the amount of fuel needed? (b) If the relationship is given by y = 0.05x and r increase by 50 km, how much does y increase?
Suppose you drive your car on a perfectly flat road at a constant speed with no wind. In this case, the amount of fuel, y, (in litre) needed is directly proportional to the distance travelled, r (in kilometre). (a) If the distance travelled increase, what can we say about the amount of fuel needed? (b) If the relationship is given by y = 0.05x and r increase by 50 km, how much does y increase?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Step 1 Part(a)
As given in the question, The amount of fuel is directly proportional to the distance Travelled.
is proportional to
If the distance travelled increases , the amount of fuel needed also Increases. (By the same factor)
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