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Keith_Richards [23]
2 years ago
12

Mike walked 3 miles in 45 minutes. What was his rate in miles per hour? A 1/4 miles per hourB 2 1/4 miles per hour C 4 miles per

hour D 15 miles per hour​

Mathematics
2 answers:
Lemur [1.5K]2 years ago
5 0

Answer:

4 miles per hour

Step-by-step explanation:

I took it on k-12

erastova [34]2 years ago
4 0

Answer:

4 miles per hour

Step-by-step explanation:

I took the test for k12

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The scale drawing of a park uses the scale 5 cm= 1 km. what is the perimeter of the actual park?​
amid [387]

Answer:

5.0 × 10-5

Step-by-step explanation:

5 cm divided by 1 km

6 0
2 years ago
PLZ HURRY IM TIMEED!! >﹏<
Mumz [18]
B) Rotterdam. Because sea level is 0 and Rotterdam is the only one below sea level
4 0
3 years ago
If a = 12 and 120% of a is equal to 80\% of bthen what is a + b ?
Novosadov [1.4K]

Answer:

The answer is 30

Step-by-step explanation:

First you have to find 120% of a (12).

\frac{12}{1}  \times  \frac{120}{100}  = 14.4

Therefore; 14.4 is 80% of b, and we are trying to find 100% of b

14.4 = 80\% \\ x = 100\%

we do not know what is 100% therefore we call it *x*. In order to find this unknown value *x* we cross multiply.

14.4 \times 100\% = 80\% \times x

This is the same as saying;

14.4  \times 1 = x \times  \frac{4}{5}

100% percent would be 1 because it is the whole number we are trying to find. The 80% would be 4/5. To get 4/5 you can simply break down 80/100 ( this is 80% as a fraction).

so the new equation is: 14.4= 4/5x

We divide both sides by 4/5. Then we will get x tobe equal to 18. Therefore b is 18. We were asked to find (a + b) so.<em> </em><em>1</em><em>8</em><em>+</em><em>1</em><em>2</em><em> </em><em>=</em><em> </em><em>30</em>

4 0
1 year ago
a space shuttle is 50 miles above earth an astronaut on the shuttle sees the sun rise over earth. to the nearest mile, what is t
Ludmilka [50]
From the astronaut to the horizon is a tangent line to the curvature of the earth.  And from that point on the horizon to the center of the earth is at a right angle to the tangent and is equal to the radius of the earth...so we can say

cosα=r/(r+h) where r is the radius of the earth and h is the height above the surface of the earth...

α=arccos(r/(r+h))

now tanα=d/r where d is the distance from the astronaut to the point on the horizon so:

tan(arccos(r/(r+h))=d/r

d=rtan(arccos(r/(r+h)))  and using r≈4000 and h=50 we get:

d=4000tan(arccos(4000/(4050)))

d≈634.42mi

d≈634 mi (to nearest mile)
6 0
3 years ago
A clear box has the shape of a rectangular prism and is filled with sand. Find the volume if the box
Strike441 [17]

Answer:

24 m³

Step-by-step explanation:

Since you didn't state the dimensions of the rectangular prism, and you didn't add a picture to show it's dimensions, then permit me to assume dimensions for the question

Assuming it's breadth is 2 m.

Assuming it's length is 4 m.

Assuming it's height is 3 m

Then the volume of a rectangular prism is given as l * b * h. Which means we multiply all the sides by one another. From my assumption of values, we have that 2 * 3 * 4, and this gives us 24 m³

24 m

Now what you'd do is substitute your values for my assumed values.. Cheers

6 0
3 years ago
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