A store sells 3 ears of corn for $1. They round prices to the nearest cent as shown below. Tell whether you would describe the relatioship between cost and number of ears of corn as proportional relationship. Justify your answer.
Ears of corn 1 2 3 4
Amt charged($) 0.33 0.67 1.00 1.34
THANK YOU!
To determine whether the relationship between the cost and the number of ears of corn is proportional, we need to check if the ratio between the cost and the number of ears is constant.
Let's calculate the ratios:
- For 1 ear of corn, the cost is $0.33, so the ratio is $0.33 / 1 = 0.33.
- For 2 ears of corn, the cost is $0.67, so the ratio is $0.67 / 2 = 0.335.
- For 3 ears of corn, the cost is $1.00, so the ratio is $1.00 / 3 ≈ 0.333.
- For 4 ears of corn, the cost is $1.34, so the ratio is $1.34 / 4 = 0.335.
Since the ratios are not exactly the same, we can conclude that the relationship between the cost and the number of ears of corn is not proportional.