[rerun]

Noone here at work claims to be a math genius and at this point noone can even figure out this guys, kids 5th grade math story problem.

Guy buys a hamburger and a large coke one day for $2.28. The next day he buys 2 hamburgers and a small coke for $4.17. How much does the small coke cost?

What's the answer? What math formula did you use to solve it. Explain your answer. (show your math)

 

[pauligan]

4.17-2.28=1.89 (cost of one hamburger)

2.28-1.89=.39 (cost of drink)

ok never mind, drink sizes are different...

 

[samson]

Are we using a 6% sales tax?

 

[rerun]

QUOTE(pauligan @ Sep 30 2003, 11:30 AM)4.17-2.28=1.89 (cost of one hamburger)
What about the cost of the cokes. $4.17 and $2.28 both include the cost of diffrent size cokes.

 

[pauligan]

is it supersized for .39??

 

[pauligan]

where is designie? He can figure this stuff out...

 

[bikinigirl]

4.17-2.28=1.89 (Cost of 1 hamburger)

now

1.89+1.89=3.78 (cost of two hamburgers)

4.17-3.78=0.39 (cost of a small coke0

(DOH! thanks veronique forgot to carry that darn 1 !) All fixed now

 

[RED HOT ONE]

FIRST YOU TAKE 2.28 FROM 4.17= 1.89 THEN TAKE 1.89 FROM 2.28 =.39 YOUR ANSWER.. ALL THE OTHER CRAP IS THERE TO CONFUSE YOU OR IN OTHER WORD MAKE YOU FIND THE SIMPLE ANSWER.... IT`S A LOGIC THING

 

[Snowbi-Wan]

Pat, I'd like to buy a vowel.

 

[pauligan]

I think bikinigirl is right; our subtraction was from the large coke, not the small coke.

 

[samson]

It's my current belief we are missing a piece of the puzzle.
I think about it during the day though.

 

[bikinigirl]

QUOTE(pauligan @ Sep 30 2003, 11:39 AM)I think bikinigirl is right; our subtraction was from the large coke, not the small coke.
Thanks Pauline,

I too have a fifth grader

 

[pauligan]

Hate these freaking SAT questions.... <_<

I concur, we don't have enough info; if the subtraction is made for the 1.89 price, it's still not the accurate price of one hamburger because we are assuming at that point that the cost of the drink is the same.

 

[bikinigirl]

oh poop! didn't even see the large and small thing!

Maybe its a typo

 

[EZ Seas]

Let X = price of hamburger
Let Y = price of large coke
Let Z = price of small coke

So, a hamburger and a large coke for $2.28: X + Y = $2.28 (1)
Two hamburgers and a small coke for $4.17: 2X + Z = $4.17 (2)
Solving (2) for Z: Z = $4.17 - 2X (3)
Solving the (1) for X: X = $2.28 - Y (4)
Plugging (4) into (3): Z = $4.17 - 2($2.28 - Y) (5)
Reducing: Z = $4.17 - $4.56 +2Y (6)
Or: Z = 2Y - $.39

Three unknowns & two equations: can't solve!

 

[Focker]

Is it regular coke or diet coke???

 

[puppetshow]

I HATE MATH!!

If it can't be figured on a calculator....then NO thank-you!!

I em mutch bettr at spelin'

 

[rerun]

I don't think it can be solved either. It was the last problem on a hand out the teacher gave the kids. With a note under it "this is a hard one" Well no sh$t not only is it a hard one I'd say impossible. Let alone for a 10 year old 5th grader.

 

[RED HOT ONE]

SORRY I DIDN`T CATCH THE LARGE SMALL THING EITHER

 

[Top Gun]

QUOTE(EZC @ Sep 30 2003, 11:53 AM)Let X = price of hamburger
Let Y = price of large coke
Let Z = price of small coke

So, a hamburger and a large coke for $2.28: X + Y = $2.28 (1)
Two hamburgers and a small coke for $4.17: 2X + Z = $4.17 (2)
Solving (2) for Z: Z = $4.17 - 2X (3)
Solving the (1) for X: X = $2.28 - Y (4)
Plugging (4) into (3): Z = $4.17 - 2($2.28 - Y) (5)
Reducing: Z = $4.17 - $4.56 +2Y (6)
Or: Z = 2Y - $.39

Three unknowns & two equations: can't solve!