3 years ago

Donya ran a 3k race at a constant speed in 21 minutes 30 seconds. At this speed, how long does it take her to run 1k?

Mathematics

2 answers:

Illusion [34]3 years ago

7 0

Answer:

7 minutes 10 seconds.

Step-by-step explanation:

Donya ran a 3 k race at a constant speed = 21 minutes 30 seconds

1 minutes = 60 seconds

21 minutes 30 seconds = 21 + (30/60) = 21.5 minutes

At this speed it would take her to run 1 k race $=\frac{21.5}{3}$

= 7.17 minutes

7.17 minutes = 7 + (0.17 × 60) = 7 minutes 10 seconds

At this speed it takes her 7 minutes 10 seconds to run 1 k race.

Zigmanuir [339]3 years ago

4 0

Answer:

7 minutes and 10 secs

Step-by-step explanation:

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