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andrew-mc [135]
3 years ago
9

What is the value of 12(3x +5x) when x=7?

Mathematics
2 answers:
liberstina [14]3 years ago
6 0

Answer: 672

Step-by-step explanation:

12(3x+5x) -> 12(3(7)+5(7))

Solve for parentheses, 3(7)=21, 5(7)=35

21+35=56, 56(12)=672

just olya [345]3 years ago
4 0
12(3(7)+5(7))
12(21)+(35))
12(56)
684
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<u>Answer:</u>

The height of the ladder is 14.491 feet

<u>Explanation</u>:

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Therefore, the height of the ladder is 14.491 feet

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4 years ago
Mary wrote a book of 1536 pages. She numbered all pages by hand. How many times did she write the digit 6?
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<em>Hi there!</em>

<em>~</em>

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<em>Hope this helped you!</em>

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