brainly won't let me type my answer out so i'll just put it in the comments, sorry if it's inconvenient.
Answer:
9 hours
Step-by-step explanation:
36 degrees total /4 degrees per hour = 9 hours
Answer:
The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate.
The constant of proportionality k is given by k=y/x where y and x are two quantities that are directly proportional to each other. Once you know the constant of proportionality you can find an equation representing the directly proportional relationship between x and y, namely y=kx, with your specific k.
Hope this helps!
Step-by-step explanation: