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anyanavicka [17]
4 years ago
6

What 21 over 4 equivalent to

Mathematics
2 answers:
Likurg_2 [28]4 years ago
5 0
 \frac{21}{4} = ? 

To find an equivalent fraction you multiply. 

<span> \frac{21}{4} x 2 = 

</span>⇒ 21 x 2 = 42 
⇒ 4 x 2 = 8

42/8 is equivalent to 21/4 

Law Incorporation [45]4 years ago
4 0
21/4 is equivalent to...

4 x 5 = 20
so, 21/4 = 5 1/4

5 1/4 = 5.25

5 1/4 = 5 2/8 = 42/8

42/8 = 84/16


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_ Is –7 + 9 positive or negative
Yanka [14]

Answer:

Positive 2

Step-by-step explanation:

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but not all problems r like this.

Brainlest plz

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3 years ago
Sam
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If it’s 6 full weeks it’s 93 hours
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You are still debating about the two different computers. If you are paid $10.00/hour and your deductions are FICA (7.65%), fede
sattari [20]

Answer:

89 hours

Step-by-step explanation:

First solve all the deductions.

For each multiply the $10, which you are paid, and the percentage.

For FICA: $10 x 0.0765 = $0.77 per hr

For Fed tax: $10 x 0.12 = $1.2 per hr

For State tax: $10  x 0.08 = $0.8 per hr

Now subtract the remaining pay:

10 – 0.77 – 1.2 – 0.8 = $7.23

Time required = $640 / $7.23 per hr

Time required = 89 hrs

Final answer:

89 hours

8 0
3 years ago
Use the following graph of the function f(x) = 2x3 + x2 − 3x + 1 to answer this question: graph of 2x cubed plus x squared minus
Zina [86]

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7

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f'(-2) = 24 + -4 − 3

f'(-2) = 17

-----

The slope at 0:

f'(0) = 6(0)^2 + 2(0) − 3

f'(0) =  − 3

The average rate of change is (17+(-3))/2, or 14/2, or 7

                           

6 0
3 years ago
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Explanation:
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