Find the number of meters each record holder ran in one second of each event. round to the nearest tenth
a) 200 meters, 19.30 seconds, usain bolt, jamaica

b) 400 meters, 43.18 seconds, michael jonhson usa

c) 100 meters, 9.69 seconds, usain bolt jamaica

A) 10.4 meters

B) 9.3 meters.

C) 10.3 meters

Step-by-step explanation:

If an object covered D meters in T seconds,

Then the distance covers by it in 1 second =

( ∵ Speed = Distance / Time ),

A) Here, D = 200 meters, T = 19.30,

Thus, the distance covered by Usain in one second

= 10.362694

≈ 10.4 meters,

B) Here, D = 400 meters, T = 43.18 seconds,

Thus, the distance covered by Michael  in one second

= 9.2635

≈ 9.3 meters

C) Here, D = 100 meters, T = 9.69 seconds,

Thus, the distance covered by Usain in one second

= 10.3199174407

≈ 10.3 meters

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.