3 years ago

What is the least common multiple of 18,20 and 24?

Mathematics

2 answers:

Black_prince [1.1K]3 years ago

7 0

The least common multiple of 18, 20, and 24 is 360.

klasskru [66]3 years ago

7 0

The least common multiple for 18, 20, and 24 is 360

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3 years ago

Algebra help. Zoom in if you can

Artist 52 [7]

Answers:

Pair-1: $log_{2}x = 5$ ↔ 32
Pair-2: $log_{10}x = 3$ ↔ 1000
Pair-3: $log_{4}x = 2$ ↔ 16
Pair-4: $log_{5}x = 4$ ↔ 625

Explanation:

Pair-1:
$log_{2}x = 5 \\ \frac{ln(x)}{ln(2)} = 5 \\ ln(x) = 5 * ln(2) \\ x = e^{5*ln(2)} \\ x = 32$

Pair-2:
$log_{10}x = 3 \\ \frac{ln(x)}{ln(10)} = 3 \\ ln(x) = 3 * ln(10) \\ x = e^{3*ln(10)} \\ x = 1000$

Pair-3:
$log_{4}x = 2 \\ \frac{ln(x)}{ln(4)} = 2 \\ ln(x) = 2 * ln(4) \\ x = e^{2*ln(4)} \\ x = 16$

Pair-4:
$log_{5}x = 4 \\ \frac{ln(x)}{ln(5)} = 4 \\ ln(x) = 4 * ln(5) \\ x = e^{4*ln(5)} \\ x = 625$

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3 years ago

If the first chapter of a certain book is 40 pages long and makes up 20% of the book, how many pages does the entire book have?

Setler [38]

Answer:

200

Step-by-step explanation:

20% of a book = 40 pages

100% of a book = x pages

20/100 = 40/x Cross multiply

20x = 100*40 Combine the right

20x = 4000 Divide by 20

20x/20 = 4000/20 Do the division

x = 200 Answer

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3 years ago