A= remaining fuel

d = kilometres

m= L/Km

N fuel tank capacity

- Thread starter lavagirl
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A= remaining fuel

d = kilometres

m= L/Km

N fuel tank capacity

- Joined
- Jun 18, 2007

- Messages
- 18,149

What are your thoughts?

A= remaining fuel

d = kilometres

m= L/Km

N fuel tank capacity

Please share your work with us ...even if you know it is wrong.

If you are stuck at the beginning tell us and we'll start with the definitions.

You need to read the rules of this forum. Please read the post titled

- Joined
- Jan 27, 2012

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- 4,803

You want "remaining fuel" to be a function of "distance driven", A= f(d). In fact, you are told to make it a **linear** function so A= pd+ q for some numbers p and q. You just need to find correct values for p and q. Suppose d= 0. That is, suppose you haven't driven any distance at all. How much fuel is left in your tank? If d= 0, A= p(0)+ q= q so that is q. Suppose you drive 100 km so d= 100. A= 100p+ q. How much fuel is used driving 100 km? So how much fuel do you have left? Set that equal to A in A= 100p+ q. Since you already have found q, you have a simple equation to solve for p.

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