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almond37 [142]
2 years ago
8

Plz helppppp :) 5(x−3 3/4)=7 1/2

Mathematics
2 answers:
Sav [38]2 years ago
8 0

Answer:

x = 5\frac{1}{4}

Step-by-step explanation:

5(x - 3\frac{3}{4} ) = 7\frac{1}{2}

Use distributive property

5x - 18\frac{3}{4} = 7\frac{1}{2}

Add 18\frac{3}{4} to both sides

5x = 26\frac{1}{4}

Divide both sides by 5

x = 5\frac{1}{4}

pentagon [3]2 years ago
5 0

the answer is 10x

Solve for

x

by simplifying both sides of the equation, then isolating the variable.

x

=

10

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allsm [11]
In decimal form it’s 3.146
4 0
2 years ago
PLEASE HELPPPP!!!!!!!!!!
Elza [17]

Answer:

8x15x12=1440

Step-by-step explanation:

7 0
3 years ago
A battery has a lifetime that is approximately normally distributed with a mean of 600 hours and a standard deviation of 50 hour
miss Akunina [59]

Answer:

A. Your battery is likely defective since such poor performance is extremely unlikely.

Step-by-step explanation:

When the distribution is normal, we use 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.

If X is more than two standard deviations from the mean, it is considered an unlikely outcome.

In this question, we have that:

\mu = 600, \sigma = 50

Which of the following conclusions is the most appropriate given this information?

Lasted 400 hours, so X = 400.

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

Z = \frac{400 - 600}{50}

Z = -4

4 standard deviations from the mean, so unlikely.

So the correct answer is:

A. Your battery is likely defective since such poor performance is extremely unlikely.

3 0
3 years ago
4x – 4 = – 12<br> X = ?<br> What is X ?
maxonik [38]

Answer:

X=-2

Step-by-step explanation:

4x-4=-12

Add 4 on both sides

+4 +4

4x=-8

Divide by 4 on both sides

÷4 ÷4

X=-2

8 0
3 years ago
Read 2 more answers
Determine the slope of the line 5x − 3y − 12 = 0.
givi [52]

Answer:

slope of a line is given by -A/B

Here A=5 and B= -3

so , when we plug in the values:  -(5/-3) = 5/3

five thirds lol.

6 0
3 years ago
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