Sophie read a total of four bucks in two months. Then she read 10 bucks in five months. What is the constant of the PROPORTIONALITY?
To find the constant of proportionality, we need to determine the ratio of the number of bucks to the number of months for each scenario.
For the first scenario, Sophie read 4 bucks in 2 months:
4 bucks / 2 months = 2 bucks/month
For the second scenario, Sophie read 10 bucks in 5 months:
10 bucks / 5 months = 2 bucks/month
From both scenarios, we can see that the constant of proportionality is 2 bucks/month.