45/55 expressed as a percentage

Mathematics

2 answers:

KATRIN_1 [288]3 years ago

8 0

45 / 55 = 0.818 = 81%

yulyashka [42]3 years ago

4 0

0.81818181818 is 45/55 in decimal form.

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A(-2, 2), B(1, 1), C(2, -2)

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For BC a diagonal, D3 is ...

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_____

For a lot of parallelogram problems I find it easiest to work with the fact that the diagonals bisect each other. This means they both have the same midpoint, so for quadrilateral ABCD, we have (A+C)/2 = (B+D)/2. Multiplying this by 2 gives the equation we used above, A+C = B+D, so D=A+C-B. Remember, in ABCD, AC and BD are the diagonals.