Question

Wich size bag of cat food show in the table has the lowest price

Answer 1

Answer:

The 40 oz cat food costing $8.00 is the lowest cost.

Step-by-step explanation:

Here, to compare the price of the cat food we need to find the UNIT RATE of the cat food of each size bag.

24 oz bag cost $5.49.

⇒ Cost of 1 oz cat food  = $\frac{5.49}{24 } =0.22875$

or, the cost of 1 oz of cat food here is $0.22875.

40 oz bag cost $8.00.

⇒ Cost of 1 oz cat food  = $\frac{8}{40 } =0.20$

or, the cost of 1 oz of cat food here is $0.20.

64 oz bag cost $15.99.

⇒ Cost of 1 oz cat food  = $\frac{15.99}{64 } =0.2498$

or, the cost of 1 oz of cat food here is $0.2498.

Now, comparing the cost of 1 oz of cat food we seen that the lowest price of cat food per oz is $0.20 in the 40 oz pack.

Hence, the 40 oz cat food  costing $8.00 costs the least.

Answer 2

Answer:

Size 40 oz bag of cat food has the lowest price.

Step-by-step explanation:

Given are the three category of different size of bag having different cost.

Lets try to find out the cost of one unit of bag for each category.

(i)   Size = 24        

     Cost= 5.49

To find one unit of bag price, divide cost by size of bag

One unit of bag cost = $\frac{5.49}{24} = \ 0.23$

∴ One unit of bag cost is $\ 0.23$

(ii)  Size= 40

     Cost= 8

One unit of bag cost = $\frac{8}{40} = \ 0.20$

∴ One unit of bag cost is $\ 0.20$

(iii) Size= 64

     Cost= 15.99

One unit of bag cost= $\frac{15.99}{64} = \ 0.25$

∴ One unit of bag cost is $\ 0.25$

∵ $\ 20$ is the lowest price among all three bags of cat food.

∴ Size of 40 oz bag has the lowest price.