Asked by savepuppy

Which is the best to buy????
A $10.88 for 7 can of tuna
B $11.55 for 6 can of tuna
C $17.25 for 9 cans of tuna
D $15.31 for 8 cans of tuna
PLZZ HELP ME I REALLY NEED HELP
Answered by Ms. Sue
Divide the price by the number of cans.

10.88 / 7 = $1.55 per can

Do the others the same way.

Answered by savepuppy
so C is the answer because it would be 1.91??
Answered by Ms. Sue
Aaarrggghh!

Why do you think paying almost 40 cents more is the best buy???

Answered by savepuppy
not everyone is smart like u so plz be nice to me thank u and NVM THANK U ANYWAYS
Answered by MathMate
When we go to the supermarket, with four similar items at different prices and packaging, we need to find the unit price of EACH of the four items in order to determine the best (lowest) unit price.

Unit price can be found by the formula
unit price = price / number of units or size
Ms. Sue already gave an example that the first item's unit price is 10.88/7=$1.55 per can.
She also suggested you to calculate the 3 remaining prices in order to find the least expensive price.
You have come up with a price of $1.91 which is 36 cents <b>more</b> expensive than the first case, which means that you have not been comparing prices.
You need to calculate the three remaining prices and find the least expensive (best) price of the four in order to solve this problem.
I hope this explanation is clear, if not, feel free to post, but
please,
do not start budging into other people's posts without contribution to the answer.
Answered by savepuppy
umm thx but I got it
Answered by MathMate
Great!
Answered by Melody.S
So, A is the best buy: $10.88 for 7 cans of tuna. Technically, you can tell that's the answer just buy looking at it, because who wants to buy a whole can for a dollar (because the other answers raise it to about a dollar a can)? Anyways, thanks Ms. Sue for telling me how to do it and you're welcome to those a gave the answer to: A.
Answered by I'm terrified of math
Thanks for telling me HOW to do it as well.
Answered by trade mark
A is the best buy
Answered by yep it's a but heres an explanation
For each possible divide the cost by the amount of cans
so...
A. 10.88/7=1.55
B. 11.55/6=1.93
C. 17.25/9=1.92
D. 15.31/8=1.91
so A would be the cheapest, I know other people already answered this but incase other questions like this come up, rather than searching them use this strategy. Also, yes I did look it up I just wanted to check my answers because these kind of questions are my favorite :)
Answered by qwertyuiop
i got the same answer (a)
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