Question

Gina is buying 24 oranges.

Two stores offer the following deals:

Store A: 12 oranges for $6.48

Store B: 5 oranges for $2.65

Gina can buy the oranges individually.

How much will Gina pay if she buys the oranges at the store with the better unit price?

Group of answer choices

Answer 1

0.24 cents

Explanation:

For this question, we can use unit rate, 2.65/5 = 0.53 (Proof 0.53 x 5 = 2.65.) This means that for 1 orange its costs about 53 cents.

To buy 24 oranges it would cost 0.53 x 24 = $12.72.

Now how much does she save in comparison to the other store?

12 oranges for $6.48

Since 12 is 1 / 2 of the value of 24, we do not really need to use unit rate. 6.48 x 2 = 12.96 per 24 oranges at store A

12.96 - 12.72 = 0.24 Therefore, Gina saves 0.24 cents.

Another way to prove the price differences is just to simply take the unit rate of the first store (A) and compare it to store (B), and multiply by x, when x = any amount of oranges Gina would like.

So that’d be 6.48/12 = 0.54, and its a difference of 1 cent. But as we see in the long term, it develops more and more as the cents/orange increase slowly but surely to 24 cents as the difference.

Answer 2

she can bye un store B because it has the best deal