Fred runs at average speed of 12km per hour and flies at an average speed of 76km per hour. they traveled a total distance of 120 km in 2 hours how long did it take her to run and fly

Fred ran for 0.5 hours and flied for 1.5 hours.

Step-by-step explanation:

Distance covers while running = d

Time taken to cover d distance = x

Speed while running = 12 km/h

Distance covers while flying = D

Time taken to cover D distance = y

Speed while running = 76 km/h

Total distance = 120 km

Total time taken = 2 hours

Average speed :

Here ,120 km = d + D

120 km = d + D

..[1]

x + y = 2 hours..[2]

Solving both equation by substitution method:

Putting value of x from [2] in [1]:

x = 2 - y

x = 2 - y = 2 - 1.5 = 0.5

Fred ran for 0.5 hours and flied for 1.5 hours.

answer: a) (0,0), (1,1), (2,8), and (3,27).

step-by-step explanation:

0^3=0

1^3=1

2^3=8

3^3=27

in effect, the exponential equation for this would me y=3^x. each x-coordinate cubed is giving the y coordinate, so a is your answer : )

answer: ♡♡♡♡♡♡♡♡♡♡

step-by-step explanation: