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attashe74 [19]
3 years ago
6

When x = 12,y = 8 find x when y = 12

Mathematics
1 answer:
nikklg [1K]3 years ago
7 0
x=12\ \ and\ \ y=8\\\
x=?\ \ \ and\ \ y=12\\\\ Making\ ratio:\\\\
12-8\\x-12\\\\
Cross\ multiplication:\\\\
12*12=8x\\\\
144=8x\ \ \ | divide\ by\ 8\\\\x=18\\\\For\ y=12\ x=18.
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What is the distance around a triangle that has sides measuring 2 1/8 feet, 3 1/2 feet, and 2 1/2 feet?
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A is the answer:⏬⏬⏬⏬⏬⏬⏬⏬

The distance around a triangle, better noun as de "perimeter of a triangle"

is the total distance around the outside, which can be found by adding together the length of each side.

Perimeter (P) = Length A + Length B + Lenght C

In this case, we know that each side measure 2 \frac{1}{8}81​ feet, 3 \frac{1}{2}21​ feet, and 2 \frac{1}{2}21​feet  but we have to rewrite each one of this mixed fractions as improper fractions:

2 \frac{1}{8}81​ = \frac{16 + 1}{8}816+1​ = \frac{17}{8}817​   

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2 \frac{1}{2}21​ = \frac{4 + 1}{2}24+1​ = \frac{5}{2}25​

Then we just add all of them to find the perimeter:

 = \frac{17 + 28 + 20}{8}817+28+20​ = \frac{65}{8}865​

A: The distance around a triangle is \frac{65}{8}865​feet
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