The number of pages Cameron reads varies directly with time in minutes. He can read 15 pages in 60 minutes. What is the constant of proportionality for the number of minutes to read 1 page.
A
4
B
−12-\frac{1}{2}−
2
1
C
2
D
−14-\frac{1}{4}−
4
1
To find the constant of proportionality, we can set up a proportion:
15 pages/60 minutes = 1 page/x minutes
Cross-multiplying, we get:
15x = 60
Simplifying, we find:
x = 4
Therefore, the constant of proportionality for the number of minutes to read 1 page is A) 4.