Question

Anouk was working with Carol. "I have another way," she said. "I can see in the table that the number of pennies is always seven times the number of centimeters. How can we reverse that to find the number of centimeters if we know the number of pennies?

a) Divide the number of pennies by 7.
b) Multiply the number of pennies by 7.
c) Subtract the number of pennies from 7.
d) Add 7 to the number of pennies.

Answer 1

To reverse the direct proportional relationship and find the number of centimeters from the number of pennies, you divide the number of pennies by 7.

Step-by-step explanation:

If Anouk mentions that the number of pennies is always seven times the number of centimeters, we are dealing with a direct proportional relationship between pennies and centimeters. To reverse the relationship and find the number of centimeters if we know the number of pennies, we need to do the opposite of multiplying by 7, which is to divide the number of pennies by 7. Therefore, the correct answer would be: a) Divide the number of pennies by 7.