How many grams of zinc oxide should be added to 3400 g of a 10%
zinc oxide ointment to prepare a product containing 15% of zinc oxide?

Answers

Answer 1

The amount in grams of zinc oxide should be added to 3400 g of a 10% zinc oxide ointment to prepare a product containing 15% of zinc oxide - 200 grams.

In the given question,

the initial amount of zinc oxide is - 10% of 3400 = 340 gramsthe amount needs to be added - x gramsthe final product have - 15% of 3400+x

solution:

[tex] \frac{340 + x}{3400 + x} = 0.15 \\ 340 + x = 510 + 0.15x[/tex]

[tex]x = \frac{510 - 340}{1 - 0.15} = 200[/tex]

x = 200 gram.

Thus, the correct amount would be - 200 grams.

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Explanation:

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Answer:

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Answer:

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Answer:

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Answers

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Answer:

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Answers

Answer:

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Answers

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Sai , phải cả hai đạt được lợi ích gọi là lợi ích song phương mới đi đến được thỏa thuận chung chứ không thể một trong hai nước có lợi thế tuyệt đối

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Answers

Answer:

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