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13.) Which of these is a better deal, on a per ounce basis?
A a 30 oz. box of Tasty Wheats for $4.20
B a 24 oz. box of Cherry Oats for $3.60
C a 42 oz. Box of Giganto Flakes for $6.30
D a 42 oz. Box of Giganto Flakes for $6.30

Respuesta :

Using proportions, it is found that the better deal, on a per ounce basis, is given by:

  • A a 30 oz. box of Tasty Wheats for $4.20

Proportion

  • To find the better deal, we use proportions to find the cost per ounce, that is, dividing the cost per the amount of ounces. The better deal is the one with the smaller cost per ounce.

For each option, the costs per ounce are given by:

  • A a 30 oz. box of Tasty Wheats for $4.20:

[tex]C_a = \frac{4.2}{30} = 0.14[/tex]

  • B a 24 oz. box of Cherry Oats for $3.60

[tex]C_b = \frac{3.6}{24} = 0.15[/tex]

  • C a 42 oz. Box of Giganto Flakes for $6.30

[tex]C_c = \frac{6.3}{42} = 0.15[/tex]

  • D a 42 oz. Box of Giganto Flakes for $6.30

[tex]C_d = \frac{6.3}{42} = 0.15[/tex]

Due to the smaller cost, option A is the better deal.

To learn more about proportions, you can take a look at https://brainly.com/question/24372153

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