Madison ran at a uniform speed for 50 minutes. She covered 9 kilometers during that period of time. (a) Find her speed in meters per second. (b) If she reduced her speed by 1 meter per second, how long would she take to cover the same distance?

the answer is the third / last answer

step-by-step explanation:

the answer is c.

step-by-step explanation:

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours

step-by-step explanation: