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Answer:

20 minutes( 0.3333 hours) after they leave the station will they be 50 km apart, if the Two trains on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 km/hr and the other travels at an average speed of 70 km/hr.

Step-by-step explanation:

The given is,

                  One train travels at an average speed of 80 km/hr

                  The other travels at an average speed of 70 km/hr

Step:1

     Formula to calculate the distance traveled by two trains,

     Distance traveled by two trains = (Rate of speed of train one +

                                                          Rate of speed of other train) × Time

        From the given the above equation becomes,

        Let, h = Time taken to each the distance

                                         50 = ( 80 + 70 ) h

                                           50 = (150) h

                                                 = 0.3333 hours

                                                 = ( 0.333 × 60 )          ( ∵ 1 hr = 60 minutes )

                                               h = 20 minutes

Step:2

           Check for solution,

           From equation (1),

                          50 = ( 80+70 ) (0.3333)

                          50 = (150)(0.3333)

                          50 = 50

Result:

         20 minutes( 0.3333 hours) after they leave the station will they be 50 km apart.

Step-by-step explanation:

Answer:

4. .88

5. 17/9

6. 67/12

7. 47/56

8. 209/45 or 4 29/45, 4.64

9. 143/30

Step-by-step explanation:

Answer:

The area of fenced surface is 7<2ft

The solution is, The Volume is 523.6, of the sphere has a radius of 5 feet.

In mathematics, volume is the space taken by an object. Volume is a measure of three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units. The definition of length is interrelated with volume.

here, we have,

Given,

r = 5 ft

pi = 3.14

Formula

the volume of sphere is:

V = 4/3 * 3.14 * r^3

Solution

V = 4/3  * 3.14 * 5^3

V = 4/3 * 3.14 * 125

V ≈ 523.59878

V ≈ 523.6 m^3

as, we get,

V≈523.59878

and 5 or more raise the score so the 9 makes the 5 into 6 and drop all of the other numbers.

Hence, The solution is, The Volume is 523.6, of the sphere has a radius of 5 feet.

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brainly.com/question/1578538

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Answer:

Hope this helps

Step-by-step explanation:

Answer:

27

Step-by-step explanation:

Answer:

Ok so basically, the formula for Volume of a Trapezoidal Prism. If the prism length is L,trapezoid base width B, trapezoid top width A, and trapezoid height H, then the volume of the prism is given by the four-variable formula: V(L, B, A, H) = LH(A + B)/2. In other words, multiply together the length, height, and average of A and B.

Answer:

The correct answer would be J; [tex]\frac{1}{2} r + 2[/tex];  

Step-by-step explanation:

Using the algebra;

[tex]\frac{1}{2} * r[/tex] = [tex]\frac{1}{2} r[/tex]

[tex]\frac{1}{2} * 4 = 2[/tex]

Altogether this would give "J" as the answer.

Hope this helps!

Answer:

J

Step-by-step explanation:

1/2(r+4) you distributing 1/2 to r and 4

Which basically divides them in half

Answer:

4 4/9,4 and 5

Step-by-step explanation:

Answer:

reflection in the y-axis

Answer: I think the answer is B

Step-by-step explanation:

Answer:

8$

Step-by-step explanation:

Answer:

h = 40°

Step-by-step explanation:

h = 180° - 140° = 40°

Answer:

Step-by-step explanation:

Answer:

<opn and <npo

Answer:

rectangle

Step-by-step explanation:

Answer:

33.75

Step-by-step explanation:

Formula: Width · Height · Length

Substitute with known values: 5 · height · 4.5

Find Length: Since the height is one third of the length, we need to divide the length by three → 4.5 ÷ 3 = 1.5

Know we know that the height is 1.5.

Substitute Known Height: 5 · 1.5 · 4.5

Simplify: 5 · 1.5 · 4.5  = 33.75

Answer:

a. Opens downwards (since the the value of 0.4 is negative)

b. Has a maximum (since the parabola opens down)

c. Is not a reflection of the parent function (since the parabola is widened by the scale factor of 0.4).

d. Is a stretch since it is widened by the scale factor of 0.4

Hope this helps!

Answer:

226.08 should be the answer

Step-by-step explanation:

Answer:

i think you do 5 ÷30

#juice wrlds not dead

Answer:

1/6 represents the 10 out of 6, but it is known as 1 in this answer because it is a choice out of the other 6.

1/6 = ?/30

1/6 · 5/5 = 5/30

5/30 large stuffed animals will be given away. I presume this is the correct answer.

Answer:

Step-by-step explanation:

Answer:

base=2 a/h

base=9

Step-by-step explanation:

Answer:

4cm 6cm 10cm

Step-by-step explanation:

it's very easy you just need to use c squared equals a squared plus b squared

Answer:

V=14

Step-by-step explanation:

Well its a supplementary angle if you add everything together.

We know theres a 90 degrees angle and a 34 degree angle.

90+34=124

124+4v=180

Since if you add everything up its a straight line

Solve the equation normally

56=4v

14=v

Answer:

All answers here: https://www.cimt.org.uk/projects/mepres/step-up/mepanswers.pdf

Answer:

343 ft^2  (Closest to Answer D)

Step-by-step explanation:

The triangle on the left has height 24 ft and base 18 ft, and therefore, by the area-of-a-triangle formula A = (1/2)(b)(h), the area of the triangle is

A = (1/2)(24 ft)(18 ft) = 216 ft^2.

The semicircle on the right has radius (18 ft)/2, or 9 ft.  Using the area-of-a-semicircle formula A =(pi)(r)^2/2, we find this particular semicircle to have area

A = (pi)(9)^2/2, or approximately 127 ft^2

Adding these two subareas together results in total area

A = (216 ft^2) + (127 ft^2) = 343 ft^2   (Answer D)

Answer:

Let me figure it out rq hold on

how to find the surface area:

The surface area of the triangular prism is the sum total of the areas of its bases and its lateral faces,