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kobusy [5.1K]
3 years ago
11

What percent of pure gold is in a watchcase that is 16 carats fine? In a chain that is 12 carats fine? In a ring that is 14 cara

ts fine?
Mathematics
2 answers:
slavikrds [6]3 years ago
5 0

Answer:

In 16 carats : 66.67%

In 12 carats : 50%

In 14 carats : 58 1/3%

Step-by-step explanation:

const2013 [10]3 years ago
3 0
14 carats is 58.30% gold
12 carats is 50.00% gold
16 carats is 66.67% gold
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Which of the following expressions are equivalent to -0.5(1.7+1.7)−0.5(1.7+1.7)minus, 0, point, 5, left parenthesis, 1, point, 7
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The expressions equivalent to -0.5(1.7+1.7) are -0.5(1.7) - 0.5(1.7)

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<h3>Distributive law of expansion</h3>

Given the expression below;

-0.5 (1.7 + 1.7)

According to the distributive law;

A(B+C) = AB + AC

Expand

-0.5(1.7) + (-0.5)(1.7)

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Hence the expressions equivalent to -0.5(1.7+1.7) are -0.5(1.7) - 0.5(1.7)

and 2(-0.5(1.7))

Learn more on distributive law here: brainly.com/question/25224410

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Answer:

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3 years ago
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