2 years ago

Plz Help solve this…

Mathematics

1 answer:

irina [24]2 years ago

5 0

Answer:

well i mean ur right who said were friends

Step-by-step explanation:

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Martha spent 4/9 of her allowance on food and shopping. What fraction of her allowance had she left?

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Her total allowance as a fraction could be expressed by 9/9. When you subtract the amount that she used, 4/9, you are left with 5/9, which is the solution.

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Many realistic application involve sampling without replacement. For example, in manufacturing, quality control inspectors sampl

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Answer:

a. possible sample size is 10

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c standard deviation is 0.9

Step-by-step explanation:

Mean of any given set of numbers is the "average" you're used to, where you add up all the numbers and then divide by the number of numbers.

Standard deviation is a measure of the amount of variation or dispersion of a set of values.

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Step-by-step explanation:

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4 years ago

Solve the system of equations.<br> 13x – 6y = 22<br> x = y + 6

GrogVix [38]

Answer:

$y=-8\\x=-2$

Step-by-step explanation:

$13x-6y=22\\x=y+6$

Replace x in the first equation.

$13x-6y=22\\13(y+6)-6y=22\\13y+78-6y=22\\7y+78=22\\7y=22-78\\7y=-56\\y=\frac{-56}{7}\\ y=-8$

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