# solve algebra word problem

• Dec 1st 2008, 08:46 AM
babyx0dolx
solve algebra word problem
How heavy is a turkey that weighs 5 pounds less than another turkey that is three times the weight of the first turkey?
• Dec 1st 2008, 08:51 AM
Chop Suey
Let a be the weight of the first turkey, b be the weight of the second turkey

$a=b-5$

$b=3a \implies a = 3a-5 \implies 2a = 5$

$a = \ldots$
• Dec 1st 2008, 08:53 AM
Inti
Turkey A weighs $x$ pounds.

Turkey B weighs $3x$ pounds (since weghs 3 times the weight of turkey A.

Turkey A weighs 5 pounds less than turkey B, so

$x=3x-5$ solving that equation you get both turkeyīs weight...(Wink)
• Dec 1st 2008, 09:00 AM
babyx0dolx
so the answer is ...x= 3x-5..?
• Dec 1st 2008, 09:02 AM
janvdl
Quote:

Originally Posted by babyx0dolx
so the answer is ...x= 3x-5..?

Whether the variable is a or x it doesn't matter. Both are right.
• Dec 1st 2008, 09:03 AM
Chop Suey
No, that's not the final answer. You have to solve for x.
• Dec 1st 2008, 09:03 AM
Inti
No, you have to find X from the equation.
Do you know how??
Nobody wants to tell you because itīs too easy...
• Dec 1st 2008, 09:08 AM
babyx0dolx
?
no i dnt knw how to do it im in 7th grade and i love math my teacher gave me this as a bonus question on a test knowing we hadnt learn this yet and now i really want to learn how to do it
• Dec 1st 2008, 09:16 AM
Inti
ok, so letīs do it....

$x=3x-5$
$5=3x-x$
$5=2x$
$5/2=x$

Your turkey weighs 2 and a half pounds.

Itīs your teacher who should teach you that, not us. She gets paid for it, we donīt...(Rofl)
• Dec 1st 2008, 09:17 AM
janvdl
Quote:

Originally Posted by Inti
ok, so letīs do it....

$x=3x-5$
$5=3x-x$
$5=2x$
$5/2=x$

Your turkey weighs 5 and a half pounds.

Itīs your teacher who should teach you that, not us. She gets paid for it, we donīt...(Rofl)

No, 2.5 pounds.

Besides that, we are here to offer free help. Period. Clearly she wants to learn and not just want her homework solved. So we will help.
• Dec 1st 2008, 09:20 AM
Inti
Hey, I was joking...
and the weight was a slip off
anyone could have it, sorry
• Dec 1st 2008, 09:21 AM
babyx0dolx
okkkkk so the answer is the turkey is 5 and a half pounds or do i now need to take 3x-5+3x-x+2x+x? or what
• Dec 1st 2008, 09:21 AM
janvdl
Quote:

Originally Posted by Inti
Hey, I was joking...
and the weight was a slip off
anyone could have it, sorry

Of course. It's not a problem if you make a mistake like that.
• Dec 1st 2008, 09:22 AM
janvdl
Quote:

Originally Posted by babyx0dolx
okkkkk so the answer is the turkey is 5 and a half pounds or do i now need to take 3x-5+3x-x+2x+x? or what

I suggest you have your teacher run through this with you. It seems you don't know anything about solving equalities yet. Let him/her do the basics with you and we should be able to assist further.
• Dec 1st 2008, 09:26 AM
Inti
Exactly.
Teaching 1st degree equations must be one of the hardest things to do...

babyx0dolx, I made a little mistake and I edited my post: the answer is 5/2 pounds which is the same as two and a half pounds (2.5 pounds, if you like it).