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Luden [163]
3 years ago
15

A super train traveled 420 miles in 3 hours. If it maintain the same speed, how far could the train travel in 16 hours?

Mathematics
1 answer:
Readme [11.4K]3 years ago
8 0

Answer:

We conclude that the train can travel 2240 miles in 16 hours.

Step-by-step explanation:

Given that a  super train traveled 420 miles in 3 hours.

  • Distance covered = 420 miles
  • Time taken = 3 hours

Step 1 of 2

Determine distance per hour

<u>Important Tip:</u>

  • The distance per hour can be determined by dividing the distance covered by the time taken.

Distance per hour = Distance Covered / Time taken

              = 420 / 3

              = 140 miles per hour

Step 2 of 2

Determine the distance traveled in 16 hours

We already know that a super train travels 140 miles per hour. In other words, the speed of the super train is 140 miles per hour.

<u>Important Tip:</u>

  • To determine the distance covered in 16 hours, all we need to do is to multiply the distance covered per hour i.e. 140 with the total number of hours i.e. 16.

Distance traveled in 16 hours = Distance per hour × 16

                                                 =  140 × 16

                                                 = 2240 miles

Conclusion:

Therefore, we conclude that the train can travel 2240 miles in 16 hours.

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4. Using the formula for the volume of a cylinder, , find h when V = 141.3 and r = 3. Use pi = 3.14.
olya-2409 [2.1K]

\text{The formula of a volume of a cylinder}\\\\V=\pi r^2h\\\\\text{We have}\ V=141.3\ \text{and}\ r=3.\ \text{Substitute}\\\\\pi(3^2)h=141.3\\\\9\pi h=141.3\qquad|\text{divide both sides by}\ 9\pi\\\\h=\dfrac{141.3}{9\pi}\qquad|\text{use}\ \pi\approx3.14\\\\h=\dfrac{141.3}{9\cdot3.14}\\\\h=\dfrac{141.3}{28.26}\\\\\boxed{h=5}

5 0
3 years ago
A parallelogram has an area of x2 + 9x - 36.
malfutka [58]

Answer:

Step-by-step explanation:

Please use " ^ " to indicate exponentiation:

A = x^2 + 9x - 36.  This factors into A = (x + 12)(x - 3).  We can assume that the length of the parallelogram is x + 12 and that the width is x - 3.

Note that if x = 3 the area becomes zero.  So:  x must be greater than 3, so that the (x - 3) factor is positive.

Example:  If x = 4, then the dimensions of the parallelogram are 4 + 12, or 16, and 4 - 3, or 1.  

5 0
3 years ago
Do you guys know this please help
valina [46]

Answer:

I'm pretty sure 44cm2

Step-by-step explanation:

If  im  wrong sorry if Im right give me 5 stars pls  

3 0
3 years ago
Simplest form for 9/6
NeTakaya
9/6 = 1 3/6
⇒ which equal 1 1/2

7 0
4 years ago
Read 2 more answers
Mrs. Tran washed 2/5 of her laundry. Her son washed 1/3 of it. How much of the laundry still needs to be washed?
Evgen [1.6K]

Answer:HIS SON DID

Step-by-step explanation:

His son: 1/4 = 25%

Mr. Strand: 2/5 = 20%

They also need 55% more to wash or in other words 11/20.

HOPE THIS HELPS HAVE A AWESOME DAY❤️

7 0
3 years ago
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