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2 years ago

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two-fifth of the fish in Gary's fish tank are guppies. One-fourth of the guppies are red. What fraction of the fish in Gary's ta

nk are red guppies. Show your work

1 answer:

Gennadij [26K]2 years ago

7 0

Answer:

1/10

Step-by-step explanation:

To find the number of red guppies, multiply the fractions.

Gary has 2/5 of his fish collection as guppies. Of the guppies, 1.4 are red.

So 2/5 * 1/4 = 2/20 = 1/10.

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Answer:

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Step-by-step explanation:

Given that:

The standard deviation σ = 14

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The formula for calculating the standard error can be expressed as:

$S.E = \dfrac{\sigma}{\sqrt{n}}$

$S.E = \dfrac{14}{\sqrt{49}}$

$S.E = \dfrac{14}{7}$

S.E = 2

Therefore, the standard error of the mean = 2

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Um help! how do I do this?

valkas [14]

1/2 t-4(2+t)=20
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t-16-8t=40
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t=56/-7=-8

Answer: t=-8

To check
-8/2 - 4(2-8)=-4-4(-6)=-4+24=20

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