I come up with .2777777777777777777777 cents

But of course a short trip like that would actually use more gas.

The car would probably only get about 28 or 30 miles to the gallon if it were making short trips like that all the time.

JD The Jazz Doctor wrote:

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jeez I am having trouble remembering how to do this. lol I graduated college too....

This distance between A and B is 2.5 miles.

The car gets 36 mpg.

Gas costs $4 a gallon.

How much does it cost in gas to get from A to B?

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Hmm, sounds like JD is robbing his piggy bank for gas money this week and only has enough in change to get him from point A to B.  I can just hear him now at the gas station......"I'll take 30 cents in gas please." 

 

I came up with the same figure.

WEB YOU GET THE GOLD STAR. Sorry JR, it wasn't a race to be first.

actually one friend was driving another home last night, 2.5 miles. The driven friend insisted on giving a couple of bucks towards gas, which would have been bus fare anyhow, fine, good. But afterwards, it was thought, it can't be more than a few cents to take this person home. So the next time the offer is extended, I want to be able to show driver and drive-e its really not that bad, keep the money.

Oh, and web...



Take THAT cornhusker!

Hehehe.. I'm with you Riggs. Getting the right result in the least possible steps is what I do for a living. We call it efficiency and cost savings.

JR - it is always about the x.

Extra credit to Web for showing the work. Some teachers would make you show the work. That way we would know that JR didn't cheat. Obviously since JR posted first I am lead to believe that he did the work on his own.

Thanks for the math brain teaser today.

WebGuy wrote:

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Lets see:

36 miles is to 400 cents

as

1 mile is to x cents


36/400 = 1/x

Cross multiply: 36x = 400

x = 400/36

x = 11.11111111

So, 1 mile costs 11.11 cents.

2.5 x 11.11 = 27.775 cents


So yes, I got the same answer as JR but I showed my work so I get extra credit.

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Wow, Web seems to know his Algebra!  Hey Web, can I call you this school year when my daughter has Algebra 2 homework and needs help with it????

 

Jeremy Riggs wrote:

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Sparky wrote:

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But....are we going 2.5 miles up hill? How fast are we going? If you are coasting down hill 2.5 miles it might cost you .3 cents. If you are going up hill 2.5 miles and have a lead foot it might cost you $50.00 and a box of twinkies.

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You can have my money, but I'll NEVER part with my Twinkies

 

 

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JR wants to keep all that preservation those Twinkies have in 'em all to himself.  After all, he's 40 now and needs all the help he can get when it comes to preserving himself. 

 

ghostdancer wrote:

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JR wants to keep all that preservation those Twinkies have in 'em all to himself.  After all, he's 40 now and needs all the help he can get when it comes to preserving himself. 

 

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You know me well Ghost!  I'm banking on the anti-aging effects of an all Twinkie diet from this point forward

I loved algebra in school. I took math all the way through my senior year. I just wish I still remembered 10% of what I used to know.

I agree that the fastest way is the best way, but JD said:

I am having trouble remembering how to do this.
So, I showed how I would do it and why it works that way.

Give a man an answer and you solve one problem. Give a man a formula with x and you help him solve all his problems.

Er . . . something like that.






-- Edited by WebGuy at 10:54, 2008-08-06

See?

Its all about the "x".

and all this time I thought it was G