Question

6 ears of corn for $1.80. What was the cost per ear?

Answer 1

Answer:

The cost was $0.30 per ear of corn.

Step-by-step explanation:

We assume that exist a linear relationship between the amount of ears of corn and the price.We also assume that it is a direct linear relationship. This means that a greater number of ears of corn imply a greater price. Now we can write this mathematically :

$\frac{(6)EarsOfCorn}{(1.80)Dollars}=\frac{(1)EarOfCorn}{x}$

Solving in terms of x :

$x=\frac{(1)EarOfCorn.(1.80)Dollars}{(6)EarsOfCorn}=0.3Dollars$

Therefore, the cost per ear of corn is $0.30

Answer 2

Let $c$ be the price of an ear of corn. So, six ears of corn cost $6c$. We thus have

$6c = 1.80$

Divide both sides by 6 to get

$c = \dfrac{1.80}{6} = 0.3$