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Delicious77 [7]
3 years ago
15

What is the solution to the equation below? Round your answer to two decimal places. 6+7 • log2 x = 21

Mathematics
1 answer:
blondinia [14]3 years ago
5 0

Step-by-step explanation:

6+ 7•log2 x = 21

7.log2 x = 21-6

7. log2 x = 15

log2 x = 15/7

x = 2^(15/7)

x = 4.416 = 4.42

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Answer:

Class 7A collected 4.8 ounces of pure gold.

Step-by-step explanation:

<u>Key skills required are: Percentages, Multiplication</u>

<u />

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Here we have to do 12% x 40 to find the number of oz of pure gold. We first have to convert 12% into a decimal. Divide it by a 100 (or move the decimal point 2 places to the left) and you will get 0.12.

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<h2><em>Answer</em><em>:</em></h2>

<em>Option</em><em> </em><em>A</em>

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