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Korvikt [17]
3 years ago
12

While mining, Nancy found a large metal bar that contains 38 pounds of gold. Navy also determined that the bar was 95% gold. Wha

t was the total weight of the metal bar in pounds
Mathematics
1 answer:
Burka [1]3 years ago
3 0

Answer:

36.1 pounds

Step-by-step explanation:

Nancy found a large metal bar that contains 38 pounds of gold while mining

She also determined that the bar was 95% gold

The total weight of the metal bar in pounds can be calculated as follows

= 95/100 × 38

= 0.95×38

= 36.1 pounds

Hence the total weight of the metal bar is 36.1 pounds

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kondor19780726 [428]

Answer:

14 ( 5)^{\frac{1}{4}} p^{\frac{1}{4}} q^{\frac{1}{2}} r^{2}

Step-by-step explanation:

The expression to simplify in this problem is

7\sqrt[4]{80pq^2r^8}

Which can be rewritten as

7(80pq^2r^8)^{\frac{1}{4}}

Or also as

7\cdot 80^{\frac{1}{4}} \cdot p^{\frac{1}{4}} \cdot (q^2)^{\frac{1}{4}} \cdot (r^8)^{\frac{1}{4}}

Now we can apply the following rule for the calculation of the power of a power:

(a^m)^n = a^{m\cdot n}

So we get:

7\cdot 80^{\frac{1}{4}} \cdot p^{\frac{1}{4}} \cdot q^{\frac{1}{2}} \cdot r^{2}

Which can therefore be rewritten as

7\cdot (2^4\cdot 5)^{\frac{1}{4}} \cdot p^{\frac{1}{4}} \cdot q^{\frac{1}{2}} \cdot r^{2}

And so, we get

7\cdot 2 \cdot ( 5)^{\frac{1}{4}} \cdot p^{\frac{1}{4}} \cdot q^{\frac{1}{2}} \cdot r^{2}

which can be finally rewritten as

14 ( 5)^{\frac{1}{4}} p^{\frac{1}{4}} q^{\frac{1}{2}} r^{2}

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