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lisov135 [29]
3 years ago
9

If a globe rotates 150 degrees in 5 seconds, how many rotations does it make in 30 seconds? I got 900 seconds for my answer am I

right? If not can you tell me the answer with work?
Mathematics
1 answer:
Maksim231197 [3]3 years ago
8 0

Start with a proportion, to get the number of degrees in 30 seconds:

         (150 degrees / 5 seconds) = ('D' degrees / 30 seconds) .

Cross multiply the proportion:  (150 x 30) = 5 x D

                                                     4,500  =  5 x D

Divide each side by  5 :                  900 = D

The globe turns 900 degrees in 30 seconds.

How many rotations is that ?
Each rotation is 360 degrees.
So 900 degrees is
                               (900 / 360) = <em>2.5 rotations</em> in 30 seconds.


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Chris borrows $9,000 at 8% annual simple interest. How much is owed after 1/2 of a year?
sergeinik [125]

Answer:

$360

Step-by-step explanation:

I am pretty sure this is the answer i am not that sure. But $9,000 at 8% is 760

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If and , find .<br><br> A. <br> B. <br> C. <br> D.
trapecia [35]
Answer: option D. 2x^2 + (3/2)x  - 5

Explanation:

1) polynomials given:

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That means that f(x) + g(x), so you have to add up the two polynomials given.

3) x/2  - 2 + 2x^2 + x - 3

4) Combine like terms:

a) terms with x^2: you only have 2x^2, so it is not combined with other term.

b) terms with x: x/2 + x

that is a sum of fractions: x/2 + x = [x + 2x] / 2 = 3x / 2 = (3/2)x

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4 0
3 years ago
I don’t understand the question and I can’t find anything in my notes to help
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Step-by-step explanation:

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y = mx + b

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(11, 42)

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pogonyaev

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