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3 years ago

The moon has a radius of 1,079 miles. What is the circumference of the moon? Express your answer in terms of

Mathematics

1 answer:

MatroZZZ [7]3 years ago

4 0

Answer:

gvhgfcbvhgfc

Step-by-step explanation:

yee

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An express train makes a run of 240 km at a certain speed. Another train whose speed is 12 km/hr less takes an hour longer to co

Evgesh-ka [11]

Answer:

12.63 km/hr

Step-by-step explanation:

Given the distance=240km

At 12 km/hr it will take =240/12 =20

time for Express train = 20-1=19

speed=240/19=12.63...km/hr

3 0

4 years ago

Read 2 more answers

The sum of two numbers is 20. Their difference is 4. What are the numbers? Use the variable A & B

Arturiano [62]

Answer:

x + y = 20

x - y = 4

Add the 2 equations and get

2x = 24

x = 24/2 = 12

Plug x=12 into either equation and get

y = 8

3 0

3 years ago

Read 2 more answers

Determine the unknown angle measures, to the nearest degree, in the diagram provided.

serg [7]

Answer:

a is 53.8°, and b is 36.2°

Step-by-step explanation:

Using sine trig rule:

${ \boxed{ \bf{ \sin(b) = \frac{opposite}{hypotenuse} }}}$

${ \tt{ \sin(b) = \frac{78}{132} }} \\ \\ { \tt{b = { \sin }^{ - 1}( \frac{78}{132} ) }} \\ \\ { \tt{b = 36.2 \degree}}$

Summation of angles of triangle:

${ \tt{a + b + 90 \degree = 180 \degree}} \\ { \tt{a + 36.2 \degree + 90 \degree = 180 \degree}} \\ { \tt{a = (180 - 36.2 - 90) \degree}} \\ { \tt{a = 53.8 \degree}}$

7 0

3 years ago

18x26=? I don't get how to do this

elena-s [515]

Answer:

468

Step-by-step explanation:

Set it up like the following-

--------

108

360

--------

408

Take the right number (6) and multiply it with 18

6 x 18 = 108

Now do the same with 2, except put a 0 at the end

2 x 18 = 36

add 0

360

Add both numbers-

360 + 108 = 468

6 0

3 years ago

The sum of three numbers is 855. One of the numbers, x, is 50% more than the sum of the other two numbers. What is the value of

Snowcat [4.5K]

Answer:

The value of x = 513

Step-by-step explanation:

Let x, y, and z be the three numbers

Given

$x+y+z=855$

Assuming x be the number which is 50% more than the sum of the other two numbers.

i.e.

(150)% of (y+z) = 1.5(y+z)

y + z = x/1.5

As we know that

$x + y + z = 855$

substituting y + z = x / 1.5 in the equation

$x+\frac{x}{1.5}=855$

Multiply both sides by 1.5

$x\cdot \:1.5+\frac{x}{1.5}\cdot \:1.5=855\cdot \:1.5$

$1.5x+x=1282.5$

$2.5x=1282.5$

Divide both sides by 2.5

$\frac{2.5x}{2.5}=\frac{1282.5}{2.5}$

$x = 513$

Therefore, the value of x = 513

8 0

3 years ago