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DanielleElmas [232]
3 years ago
6

Which number make this sentence true 27:45=45:x​

Mathematics
2 answers:
jarptica [38.1K]3 years ago
6 0

Answer:

x = 75

Step-by-step explanation:

Let's consider the following equality.

27:45=45:x​

We can write this proportion in the fractional form.

27/45 = 45/x

We can solve for x using the Cross Product Property of Proportions.

27 × x = 45 × 45

27 × x = 2025

x = 2025/27

x = 75

The unknown number that satisfies the proportion is x = 75.

PSYCHO15rus [73]3 years ago
5 0

Answer:

x = 75

Step-by-step explanation:

We can write this as a proportion

27            45

--------- = --------

45            x

We can use cross products to solve

27 x = 45 *45

Divide each side by 27

27 x/27 = 45*45 /27

x = 75

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Suppose that the quarterly sales levels among health care information systems companies are approximately normally distributed w
cupoosta [38]

Answer:

The cutoff sales level is 10.7436 millions of dollars

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 12, \sigma = 1.2

15th percentile:

X when Z has a pvalue of 0.15. So X when Z = -1.047.

Z = \frac{X - \mu}{\sigma}

-1.047 = \frac{X - 12}{1.2}

X - 12 = -1.047*1.2

X = 10.7436

The cutoff sales level is 10.7436 millions of dollars

6 0
3 years ago
Solve for x: -5|x+1|=10
MrMuchimi
-5|x + 1| = 10
     -5       -5
   |x + 1| = -2

No Solution
8 0
3 years ago
Find the value of n. 4 × 62 = (4 x n) + (4 × 2)
tino4ka555 [31]
The answer is 1000 because 62x4= 248 and then you take 248 and multiply it by 4 and you get 992 then you have to multiply 4x2 which is 8 and then when you add 992+8, you would get 100 ;)
7 0
3 years ago
Read 2 more answers
6x − 5 = 5(x − 3) + x<br> X=???
Fudgin [204]

Answer:No solution

Step-by-step explanation:

8 0
2 years ago
What are all the units to algebra 1 ?
dimaraw [331]

Answer:

Your question doesn’t make sense homie

Step-by-step explanation:

3 0
3 years ago
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