Select the correct answer. the number of oranges purchased varies directly as the price of the oranges. if 11 oranges cost $2.35, what is the cost of 18 oranges? a. $3.85 b. $85.71 c. $84.24 d. $2.35

A. 3.85

Step-by-step explanation:

If 11 oranges cost $2.35, we could calculate the cost of each of these oranges, simply dividing the total cost ($2.35) between the amount of oranges bougth (11). This will give us the cost of a single orange, that is, the  unitary cost= .Then, if we want to know the cost of 18 oranges, we just have to multiply the cost of a single orange (0.21) by 18: 0.21x18 = 2.85