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kicyunya [14]
3 years ago
15

Identify the structures of the heart.

Biology
1 answer:
bija089 [108]3 years ago
7 0

Answer:

i have put an image for a diagram of the heart in the answers becuase you did not provide a diagram so i hope this helps

Explanation:

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A pharmacist has two vitamin-supplement powders. The first powder is 10% vitamin B1 and 30% vitamin B2. The second is 15% vitami
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Answer:

560 mg of powder 1 and 160 mg of powder 2

Explanation:

Let "X" denotes weight of powder 1 added to the new mixture and  "Y" denotes weight of powder 2 added to the new mixture

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Equation 1

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Equation 2

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Let us simplify the above two equations, we will get

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Substituting value of X in equation 2 we get

0.3 * 560 + 0.2 Y = 200\\0.2 Y = 200 - 168\\Y = 160

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3 years ago
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