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AnnZ [28]
4 years ago
11

(03.06 MC)Solve the equation for the letter r: d = rt

Mathematics
2 answers:
kiruha [24]4 years ago
5 0

Answer:

r = \frac{d}{t}

Step-by-step explanation:

Given: d = rt

Here we have to solve for letter "r".

To solve for letter "r" we have to use inverse operation and solve.

d = rt

We have to get rid of "t" on the right hand side.

"t" is in the multiplication, the inverse operation of multiplication is division.

So divide both sides by t, we get

d/t = rt/t

Simplifying the above equation, we get

d/t = r

Therefore, r = \frac{d}{t}

Neporo4naja [7]4 years ago
4 0
The equation for r: d = rt would be 'r equals d over t.'

How, you might ask? Well, let's consider this example:

You might already know what d = rt stands for... "Distance equals rate times time", so if you divide the two sides by 't', you would come up with r = d/t. So that would finalize as your answer for this question.
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Which box-and-whisker plot is the correct drawing for the following data? 38, 29, 23, 23, 34, 25, 36, 35, 20, 17, 24, 25, 27, 20
Darina [25.2K]

Answer:

Step-by-step explanation:

38, 29, 23, 23, 34, 25, 36, 35, 20, 17, 24, 25, 27, 20, 30

17 20 20 23 23 24 25 25 27 29 30 34 35 36 38

Number of values = 15

Median = 8th value = 25

First quartile

First quartile would be the half of the median i.e., the 4th value

First quartile = 23

Third quartile

Third quartile would be the half of the median. Start counting from the 9th value.

Third quartile = 34

One whisker would start at 17 and the other would be at 38.

3 0
4 years ago
Which of the following expressions is equal to 1 divided by 16
Ber [7]
The correct answer is:  [A]:  " (\frac{1}{2})⁴ " .
_______________________________________________

Note:  (\frac{1}{2})⁴  = \frac{1^{4} }{2^{4} } ;

                                                = \frac{1*1*1*1}{2*2*2*2} ;

                                                = \frac{1}{16} .
_______________________________________________________

Consider "Choice [B]" :  "(\frac{1}{2})⁴ " ;

Note:  (\frac{1}{4})⁴ =  \frac{1^{4} }{4^{4} } ;

                                                = \frac{1*1*1*1}{4*4*4*4} ;

                                                = \frac{1}{256} .

Note that:  "\frac{1}{256}" \neq "\frac{1}{16}" .
__________________________________________________________

Consider "Choice [C]" :  "(\frac{1}{8})² " ; 

Note:  (\frac{1}{8})²  = \frac{1^{2} }{8^{2} } ;

                                                = \frac{1*1}{8*8} ;

                                                = \frac{1}{64} .

Note that:  "\frac{1}{64}" \neq "\frac{1}{16}" .
__________________________________________________________
     →  As such, the only correct answer choice is:
__________________________________________________________
Answer choice:   [A]:  " (\frac{1}{2})⁴ " .
__________________________________________________________
6 0
4 years ago
How would I rewrite 11 1/4 using radical notation?
forsale [732]
The answer for the problem is 45/4 is the improper fraction so that is the answer

7 0
3 years ago
Read 2 more answers
What is 2/5 plus 4???
valentina_108 [34]

Answer:

4 2/5 or 4.4

Step-by-step explanation:

2/5 = 0.4

4.0 + 0.4 = 4.4

4 0
3 years ago
Read 2 more answers
The amount of time a certain brand of light bulb lasts is normally distributed with a
scoundrel [369]

Answer:

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Step-by-step explanation:

We are given that The amount of time a certain brand of light bulb lasts is normally distributed

Mean =\mu = 2000

Standard deviation =\sigma = 55

We are supposed to find  What percentage light bulbs last less than 2080 hours, to the nearest tenth

Z = \frac{x-\mu}{\sigma}\\\\Z=\frac{2080-2000}{55}

Z=1.45

Refer the z table for p value

p value = 0.9265

Hence 92.65 % light bulbs last less than 2080 hours

5 0
3 years ago
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