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3 years ago

X - 5.1 = -7.6 x is equal to what number

Mathematics

2 answers:

Nesterboy [21]3 years ago

6 0

Answer:

$\Huge \boxed{x=-2.5}$

Step-by-step explanation:

Add by 5.1 from both sides of equation.

$\displaystyle x-5.1+5.1=-7.6+5.1$

Simplify, to find the answer.

$\displaystyle -7.6+5.1=-2.5$

$\boxed{x=-2.5}$ , which is our answer.

Paul [167]3 years ago

5 0

$x-5.1=-7.6 \\\\ x=-7.6+5.1 \\\\ \boxed{x=-2.5}$

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Ruby wanted to get an iPod for 350$ she already had 52$ saved and if she worked for 8 hours a week for 9$ an hour how many weeks

WARRIOR [948]

Answer:

I believe that the answer is 4.13 weeks

Step-by-step explanation:

Since she already has $52 you can automatically start by doing:

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2 years ago

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2 years ago

Assume that women have heights that are normally distributed with a mean of 63.6 inches and a standard deviation of 2.5 inches.

Maurinko [17]

Answer:

Q3 = 65.7825.

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:

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