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katen-ka-za [31]
3 years ago
13

How do i figure it out

Mathematics
1 answer:
olchik [2.2K]3 years ago
6 0
X + x + 1 + x + 2 = 12
x + x + x + 3 = 12
subtract 3 for each side
x + x + x = 9
3x = 9
divide 3 from each side
x = 3

Small side 3 feet
Middle side 4 feet
Long side 5 feet
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What is the multiplicative inverse of the sum of 1/3 + 1/5 ? Express in simplest form
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\frac{8}{15}

My Work/Reasoning:
First we find the sum of 1/3 and 1/5. \frac{1}{3} + \frac{1}{5} = \frac{5}{15} + \frac{3}{15} = \frac{8}{15}
Then, we find the multiplicative inverse, I guess it's also known as the reciprocal. \frac{8}{15} turns into \frac{15}{8}
Finally, we simplify. \frac{15}{8}=1 \frac{7}{8}
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Answer:

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