Plz ! 15 points! amy and chris took different routes to travel from point a to point e. amy took the route along a, b, c, d, and e and reached the destination in 2 hours. chris took the route along a, g, f, and e and reached the destination in 3 hours. their routes are shown. which conclusion is correct? amy's average speed is twice chris's average speed. chris's average speed is twice amy's average speed. amy's average speed is equal to chris's average speed. chris's average speed is three times amy's average speed.

Amy's average speed is equal to Chris's average speed.

Explanation:

Average speed is the ratio of total distance and total time interval

So here for Amy we know that

now the average speed of Amy is given as

Similarly for Chris we will have

average speed =

so correct answer is

Amy's average speed is equal to Chris's average speed.

when a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3 a. what is the resistance of the device?

a. 27 ω

b. 40.5 a

c. 243 ω

d. 243 a

the correct answer is a. 27