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dusya [7]
3 years ago
11

The ratio of red marbles to black marbles is 4:7. If the bag consists of 77 marbles in all, how many red marbles are in the bag?

Mathematics
1 answer:
Anon25 [30]3 years ago
6 0

Answer:

28:49

Step-by-step explanation:

4:7 is equal to 11 total marbles and if there are 77 you would multiply each number by 7

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3 years ago
Find the following integral
ololo11 [35]

There's nothing preventing us from computing one integral at a time:

\displaystyle \int_0^{2-x} xyz \,\mathrm dz = \frac12xyz^2\bigg|_{z=0}^{z=2-x} \\\\ = \frac12xy(2-x)^2

\displaystyle \int_0^{1-x}\int_0^{2-x}xyz\,\mathrm dz\,\mathrm dy = \frac12\int_0^{1-x}xy(2-x)^2\,\mathrm dy \\\\ = \frac14xy^2(2-x)^2\bigg|_{y=0}^{y=1-x} \\\\= \frac14x(1-x)^2(2-x)^2

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x(1-x)^2(2-x)^2 = x^5-6x^4+13x^3-12x^2+4x

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3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

the filled circle is the less/greater than or equal to sign and the open circle is a less/greater than sign.

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3 years ago
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