Two step inequalities

1 answer:

3 0

Do you need an example? If so, 2x + 4 greater than or equal to 24. If you need to know how to do them. Check the image. These are two step inequalities because you have to subtract from both sides THEN divide to get x by itself. Hope I helped.

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1. Express the ratio in three<br> different ways (grey to white.)

ad-work [718]

Answer: 2/3, 2:3, and 2 to 3

Explanation: there are three different ways to write ratios - using fractions, semi colons, and the word “to”

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4 years ago

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According to the chart below, what percentage of Ralph’s expenses are items other than taxes?

DedPeter [7]

Look at the key to figure out which colors represent taxes. 29% and 6% are the percentages for federal and state taxes. To find the percentage of all the expenses other than taxes, just subtract them from 100%

100-29-6= 65%

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4 years ago

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The lengths of human pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. What is t

AfilCa [17]

Answer: A. 0.0164

Step-by-step explanation:

Given : The lengths of human pregnancies are normally distributed with a mean $\mu=268\text{ days}$

Standard deviation : $\sigma=15\text{ days}$

Let X be the random variable that represents the length of pregnancy of a randomly selected human .

z-score : $z=\dfrac{X-\mu}{\sigma}$

For X = 300

$z=\dfrac{300-268}{15}\approx2.13$

Now, the probability that a pregnancy last at least 300 days will be :-

$P(X\geq300)=P(z\geq 2.1333)=1-P(z$

Hence, the probability that a pregnancy last at least 300 days =0.0164

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3 years ago

X=2x1+3000x40+80x5000

lidiya [134]

The answers is x=412,002

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3 years ago

The measure of an angle is three times the measure of its supplementary angle. What is the measure of each angle? I will mark br

Korvikt [17]

Answer:

Step-by-step explanation: i wouldn’t really be able to help because you did say what the supplementary is but what ever the supplementary is you multiply it with 3

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3 years ago

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