Answer:
5 hours
Step-by-step explanation:
First, you set the equations equal, so 20h=17h+15
Second, you isolate the h, so you would subtract 17h from both sides, giving you 3h=15
Last, you divide both sides by 3 giving you h=5, meaning the companies charge the same price after 5 hours.
Explanation-
3/7 is not proportional because if you divide 3 by 7 you don’t get a whole number or nice fraction
8/28 is proportional because if you divide the fraction by 4 you get 2/7 which is a nice fraction
Answer: 10
Step-by-step explanation: The diameter is twice the radius
Answer:
4
Step-by-step explanation: