Question

What is the value of time, t, for the given values of distance, d, and rate, r?

d = 425 m, r = 50 m/s









A.
8.5 m







B.
8.5 s







C.
21,250 m







D.
21,250 s

Answer 1

distance = rate*time

d = r*t

d/r = r*t/r ... Divide both sides by r.

d/r = t

t = d/r

Answer 2

plug the given distance and speed into t = d/r to find the time

Answer 3

I got 8.5

Answer 4

correct

8.5 seconds

Answer 5

the units for time are in seconds and not meters

Answer 6

can u do more

Answer 7

sure, one more

Answer 8

Maria's family drove 140 miles to her grandparents' house and averaged 56 mi/h on the way there. On the return trip, they averaged 50 mi/ hr.

What was the total time Maria's family spent driving to and from her grandparents' house?









A.
2.5 h







B.
2.6 h







C.
5.2 h







D.
5.3 h

Answer 9

"Maria's family drove 140 miles to her grandparents' house and averaged 56 mi/h on the way there"

how long did they take to go from their house to their grandma's house?

use t = d/r

Answer 10

so its 2.5 A

Answer 11

that's just for the first part of the trip

Answer 12

how long did they take coming back?

Answer 13

wat do I do tho

Answer 14

they travel 140 mi to get there, then 140 mi to get back

Answer 15

so the distance d is the same each time

Answer 16

the value of r coming back is 50

Answer 17

use t = d/r to figure out how long it took them to come back home

Answer 18

d?

Answer 19

d = 140 the whole time

Answer 20

the distance from home to grandmas house doesn't change

Answer 21

how long does it take to go from home to grandma's house?

how long does it take to go from grandma's house to home?

Answer 22

2.8 but It says total time and I got d 5.3

Answer 23

how did you get 5.3 ?

Answer 24

I got 5.3 from 140/56=2.5 and 140/50=2.8 add them together and I got 5.3

Answer 25

very good