400 --- 100%
60 --- x%
x = 60/400 * 100 = 15% <span>chocolate.</span>
Answer:

Step-by-step explanation:
Explained all in my picture
Time Distance Distance / Time
2hrs 90 miles 90 miles / 2 hrs = 45 miles / hr
3hrs 135 miles 135 miles / 3 hrs = 45 miles / hr
5hrs 225 miles 225 miles / 5 hrs = 45 miles / hr
6hrs 270 miles 270 miles / 6 hrs = 45 miles / hr
Constant of proportionality is 45 miles / hr. This is the same for the four values. The unit rate is also 45 miles / hr.
Let us assume the Distance , d is directly proportional to Time, t
d α t
d = kt
Constant of proportionality is k which is D/T
d = 45t
It B. You enter 5 instead of x and calculate.
No because if a number is a whole number then it is also a rational number and an integer