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Colt1911 [192]
3 years ago
6

In 2009, a Jamaican sprinter named Usain Bolt set a world record when he ran 100 meters in 9.58 seconds (or 0.160 minutes). If a

car traveled at that average speed for 1 hour, how far would it travel?
The distance traveled in one hour is equal to the distance traveled in one minute times the number of minutes in an hour.

But I cannot figure out the answer!!! It's way to hard for me, and normally, I'm really ggood at this kind of thing. But today, I just can't seem to do it?!? I'm actually really annoyed about it!!!!
Mathematics
1 answer:
Alexxx [7]3 years ago
5 0

Answer:

37,500 m

Step-by-step explanation:

Given Usain bolt traveled 100m in 0.160 minutes

recall that

speed = distance travelled ÷ time taken

hence Usain Bolt's speed

= 100  m ÷ 0.160 min

= 625 meters per min

Now given that a car travels at the same speed for one hour.

recall 1 hour = 60 minutes.

Using the same formula as above

speed = distance traveled ÷ time taken

rearranging, we get

distance traveled = speed x time taken

we calculated the speed previously to be 625 m/min and we are given a time of 1 hour (i.e 60 min)

hence

distance traveled = speed x time taken

distance traveled = 625 m/min x 60 min = 37,500 m

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3 0
3 years ago
The radius of a cylindrical water tank is 4.5 ft, and its height is 8 ft. What is the volume of the tank?
Brums [2.3K]
The answer is 509 ft^3


Formula:
V = πr^2h
V = 3.14 * 4.5^2 * 8
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5 0
3 years ago
The perimeter of a triangle is 47 feet. One side of the triangle is one foot longer than the second side. The third side is four
Ugo [173]

Answer:

The lengths of all three sides (in feet) are = 15, 14, and 18 feet

Step-by-step explanation:

Perimeter of Triangle = 47ft

Let the one side be 'x'

<em>Side 1 = x</em>

One side of the triangle is one foot longer than the second side

<em>Side 2 = x - 1</em>

<em>The third side is four feet longer than the second side</em>

<em>Side 3 = (x - 1) + 4</em>

<em />

<em>Perimeter = sum of all sides</em>

<em>47 = x + (x - 1) + (x - 1) + 4</em>

<em>47 = x + x - 1 + x - 1 + 4</em>

<em>47 = 3x + 2</em>

<em>47 - 2 = 3x</em>

45 = 3x

<u>x = 15</u>

substitute for x in each of the sides

<em>Side 1 = x                   => </em><em>15 feet</em>

<em>Side 2 = x - 1              => 15 - 1 = </em><em>14 feet</em>

<em>Side 3 = (x - 1) + 4      => 14 + 4 = </em><em>18 feet</em>

6 0
3 years ago
Read 2 more answers
How do i solve v=pi/3*r (squared)h for h
Colt1911 [192]
V=\dfrac{\pi}{3}\cdot r^2h\ \ \ \ \ |multiply\ both\ sides\ by\ 3\\\\\pi r^2h=3V\ \ \ \ |\divide\ both\ sides\ by\ \pi r^2\\\\\boxed{h=\dfrac{3V}{\pi r^2}}
3 0
3 years ago
can someone go to my profile then go to my questions I keep posting them but no one replies please I need help
andrew11 [14]

Answer:

ok ill look

Step-by-step explanation:

6 0
3 years ago
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