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yawa3891 [41]
3 years ago
12

What is the value of x, if 105% of 90 is equal to 200% of x?

Mathematics
1 answer:
Brut [27]3 years ago
3 0

Answer:

Step-by-step explanation:

200% of x = 105% of 90

(200/100) * x = (105/100) * 90

2 * x = 1.05 * 90

x = \frac{1.05*90}{2}\\\\x=1.05*45\\\\

x = 47.25

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The mean value of 500 homes in a county is $225,000 and the standard deviation is $25,000. approximately how many of the homes i
dusya [7]

240 homes in the county are between $175,000 and $225,000.

The image attached is associated with this question and m in it refers to the mean value which is $225000 here and d refers to the standard deviation which is $25000 here.

Now since m= $225000

and $175000= $225000-$50000= $225000-(2* $25000)= m-2d

Thus, as per the image area covered between m and m-2d=  $225000

and $175000 is (34%+14%)of 500 homes= 68% of 500= 240 homes, is the answer.

A random variable X is said to follow a normal distribution if its parameters are mean and standard deviation. Every other distribution can be reduced to a normal distribution.

Learn to know more about normal distributions on brainly.com/question/4079902

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3 0
2 years ago
13 3/5 -b when b = 3
tresset_1 [31]

Answer:

the answer is 10.6

Step-by-step explanation:


5 0
3 years ago
Express 12.5% as a decimal<br><br> Thanks :)
diamong [38]
12.5%
<span>to convert from percent to decimal: divide by 100, and remove the "%" sign.
</span>
12.5 ÷ 100 = 0.125
7 0
3 years ago
On the basis of extensive tests, the yield point of a particular type of mild steel-reinforcing bar is known to be normally dist
KiRa [710]
1) The formula used for determining the confidence interval is
Sample mean +/- Critical value (or z-score corresponding to 90% confidence) * Standard
error of mean
8439 +/- 1.645 * 100/sqrt 25
8439 +/- 1.645 * 20
8439 +/- 32.9
2) The only difference in this case is finding the critical value i.e., z-score corresponding to 92% confidence which is 1.75 approximately
Then the confidence interval is
8439 +/- 1.75 * 100/sqrt 25
8439 +/- 1.75 * 20
8439 +/- 35
Lower limit is 8439 - 35 = 8404
The upper limit is 8439 + 35 = 8474
6 0
3 years ago
2 less than the product of w and 5
svp [43]
Answer:

~ 5w-2

Explanation:

~ First multiply, the w and 5 together giving you (5w)

~ Then take away 2 from the 5w giving you the answer of 5w-2
3 0
3 years ago
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