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3 years ago

3x-y=8 solve for x need help asap !! please and ty

Mathematics

2 answers:

Stella [2.4K]3 years ago

8 0

Answer:

Step-by-step explanation:

3x = y - 8

x = y/3 + 8/3

lubasha [3.4K]3 years ago

5 0

Answer:

x = (8+y)/3

Step-by-step explanation:

3x-y=8

Add y to each side

3x-y+y=8+y

3x = 8+y

Divide each side by 3

3x/3 = (8+y)/3

x = (8+y)/3

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Step-by-step explanation:

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3 years ago

A pack of water bottles contains 24 bottles. A man decided to buy 3 bottles of water. How much bottles of water did he buy?

lukranit [14]

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Step-by-step explanation:

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3 years ago

The circumference of the great wheel was twelve thousand and forty-one thousand inches. The cricumference of the lesser wheel wa

Korvikt [17]

Answer:

The larger wheel is 10979.04098 more than the smaller wheel.

Step-by-step explanation:

Given that,

The circumference of the great wheel was twelve thousand and forty-one thousandth inches.

C = 12000.041 inches

The circumference of the lesser wheel was only one thousand twenty-one and two hundred-thousand inches.

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3 years ago

A researcher is interested in the lengths of brook trout, which are known to be approximately Normally distributed with mean 80

aliya0001 [1]

Answer:

$P(X$

And we can find this probability with the normal standard distirbution or excel and we got:

$P(z$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the lenghts of a population, and for this case we know the distribution for X is given by:

$X \sim N(80,5)$