I feel reall dumb for this.. But I need help..
A kilogram is 2.2, per every I pound.
Question: Turkey is on sale at the Wholesale Club for $4.50/lb and at Extra Food's for $9/kg. If you are looking for a 20 lb bird, where would you find the better deal and why??
See. I don't understand how to caculate that, can someone please help me out on how? Thanks.
2007-01-12 12:02:17 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
4.50lb
2007-01-12 12:56:02 · answer #1 · answered by S.T. 4 · 0⤊ 0⤋
Either multiply $4.50 by 2.2 or divide $9 by 2.2. Take your pick (I personally thing multiplying is easier). You would get:
Wholesale Club - $9.90/kg or $4.50/lb
Extra Food's - $9/kg or $4.09/lb
Either way Extra Food's is cheaper. Even if you multiply looking for a 20 lb turkey it doesn't change the fact that you pay less at Extra Food's.
2007-01-12 20:10:35 · answer #2 · answered by Alcoli 1 · 0⤊ 0⤋
Take a step back and see what you really need to do.
The cheapest means the least cost/weight. You just need to make sure that you're using the same units. You can't compare peso/kg with dollars/lb, you need to convert one of them. It's up to you which one you convert.
Don't worry about the 20 lbs. The cheapest price/weight will also give the cheapest for 20 lbs.
Multiplying is easier than dividing, so I'd recommend converting:
$4.5 /lb*(2.2 lb/kg) = $9.90 /kg This is slightly more than Extra's $9/kg and so the price at Extras is cheaper.
2007-01-12 20:27:46 · answer #3 · answered by modulo_function 7 · 0⤊ 0⤋
Since you are looking for an answear in lbs (20 lb bird) lets begin by changing Kilo's to lbs. $9.00 divided by 2.2 = 4.09 or $4.09/lb
Store A was selling at $4.50/lb x 20 lb bird = $90.00
Store B " " " $ 4.09/lb x 20 lb bird = $81.80
Store B's the better deal but they both seem pretty high to me.
2007-01-12 20:25:50 · answer #4 · answered by jb.guts 1 · 0⤊ 0⤋
A kilogram is 2.2 pounds.
2.2 * $4.50 = $9.90 per Kilogram
This indicates that "Extra foods" has the better buy at $9.00 per Kilogram
2007-01-12 20:10:32 · answer #5 · answered by J C 5 · 0⤊ 0⤋
20 lbs X $4.50 / lbs = $90
20 lbs X $9.00/Kg / 2.2 Kg/lb = $81.81
Cheaper by the Kg.
U can see that it casts twice as much to buy by the Kg, but a Kg is more than twice one pund so u can figure it out without using math too...
2007-01-12 20:15:01 · answer #6 · answered by Trevor Smith 3 · 0⤊ 0⤋
Okay, if 1 kg= 2.2 lb.
Then 9/kg = 9/2.2lb, or 4.09 per 1 lb.
So, thats cheaper then 4.50 per lb.
So, its cheaper at extra food's.
2007-01-12 20:16:01 · answer #7 · answered by yljacktt 5 · 0⤊ 0⤋
20 X 4.50 = $90
20 X 9 / 2.2 = $81.82
2007-01-12 20:26:13 · answer #8 · answered by Spearfish 5 · 0⤊ 0⤋
4.50/lb*20lb= $90
9/2.2lb*20lb= $81.82
Extra Food
2007-01-12 20:09:12 · answer #9 · answered by 7 · 0⤊ 0⤋