Distance=velocity times time

d=vt

t=d/v, since d=8.715km and v=8.3km/hr

t=8.715/8.3

t=1.05 hours

(t=1:03, one hour and 3 minutes)

Answer:

169 seconds

3rd lap

0.923 minutes

Step-by-step explanation:

To solve this question, we would use formula for arithmetic progression in solving it.

S(n) = a + (n - 1)d

If a = 25 s

n = 10

d = 16

S(n) = 25 + (10 - 1)16

S(n) = 25 + 9 * 16

S(n) = 25 + 144

S(n) = 169

It takes him 169 seconds to cycle his tenth lap

b

If S(n) = 55.4, what is n

55.4 = 25 + (n - 1)16

55.4 - 25 = (n - 1)16

30.4 = (n - 1)16

n - 1 = 30.4/16

n - 1 = 1.9

n = 1.9 + 1

n = 2.9 approximately 3

Therefore, he's on his 3rd lap

c

Total time cycled is dependent on the total cycles he made, and going to question 2, we were told he made 55.4 seconds of cycle

55.4/60 = 0.923 minutes

You have it right it's 1.4

(-2, 4)

Hope this helps! If not I, truly sorry