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xz_007 [3.2K]
3 years ago
7

The train ride at the zoo covers a distance of 2 1/2 miles in 1/4 of an hour. At what rate in miles per hour does the train go

Mathematics
2 answers:
fredd [130]3 years ago
6 0

Answer:

10

Step-by-step explanation:

2 1/2*4

Ganezh [65]3 years ago
3 0

Answer:

10 mph

Step-by-step explanation:

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Find mesure of angle 2 (pic attached) (will mark brainliest)
emmasim [6.3K]

Answer: The answer is C. 120

I hope u pass the test gl :)

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2 years ago
WILL MARK BRAINLIST!!! <br> NEED CORRECT ANSWER ASAPPP
wariber [46]

Answer:

c) 11

Step-by-step explanation:

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3 years ago
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Yea yea you know i need help my brains tiny thank you for everything and everyone helping
Darina [25.2K]

Answer: r=6

Step-by-step explanation:

<u>Step 1: Substitute for the known variables</u>

we know that the formula to find the volume of a cylinder is <u>V= πr²h</u>

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h= 12

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v=1,357

Plugging the numbers we know into the formula, we get:

1,357= 3.14xr²x12

1,357= 3.14x12xr² (because with the commutative property of multiplication you can multiply in any order)

1,357= 37.68 x r²

<u>Step 2: Get the variable term (the letter term) on the left</u>

37.68 x r²= 1,357

Now, divide by 37.68. (I know to divide because when you switch the 37.68x r² the other way around to  r²x37.68, you are clearly multiplying and must do the inverse operation (opposite of multiplication; division) to solve the problem.

So,

r²= 1357÷37.68

r²= 36.0138004 ----> about 36.

r²= 36

This equation isn't over yet because we still have the exponent on the r. Whenever you see a letter squared (to the power 2) in an equation, the "inverse operation" is to take the square root of both sides. Look:

r²= 36

The square root of  r² is just r, because r x r =  r²

The square root of 36 is 6, because 6x6=36.

Now we have :

r= 6

Step 3: Check

Now we have all the variables. To check to make sure the radius is correct, "plug in"

V= π r²h

1,357= 3.14x6²x12

1,357= 3.14x36x12

1,357= 113.04x12

1,357= 1356.48

They said in the question that the volume is APPROXIMATLEY 1357, so I can just round 1356.48 --> 1356.5---> 1357. Now I am sure that the radius is 6.

Hope this helps :)) also brainliest would be appreciated  :D

4 0
2 years ago
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Luba_88 [7]

Answer:

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Step-by-step explanation:

If you subtract 95 degrees from a 180-degree triangle, you are left with 85 degrees. To proportionally split them, find two values that add to the same value. Since 40 and 45 make up 80 and they multiply by two to make 80:90, these are the two measures.

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