It takes 10 pounds of potatoes to make 15 pounds of mashed potatoes. At this rate: How many pounds of mashed potatoes can they make with 15 pounds of potatoes?

22.5 pounds of mashed potatoes are made from 15 pounds of potatoes.

Step-by-step explanation:

According to the statement, we notice that the amount of pounds of potatoes () is directly proportional to the amount of mashed potatoes (). That is:

(Eq. 1)

Where is the proportionality constant, dimensionless.

Then we eliminate such constant by building this relationship:

(Eq. 2)

If we know that , , , then the amount of pounds of mashed potatoes is:

22.5 pounds of mashed potatoes are made from 15 pounds of potatoes.