2 years ago

50 tickets need sold but only 9 have been sold what percent have been sold?

Mathematics

1 answer:

aev [14]2 years ago

4 0

Answer:

18%

Step-by-step explanation:

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cricket20 [7]

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2 years ago

What is the Anwser if a divide 33 into 2 groups so the ratio is 4 to 7

Naddika [18.5K]

You have to solve this algebraicly.
To do this set up the proportion and add x to each term.
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2 years ago

HELP!! What is the approximate measure of angle x in the triangle shown?

Alex Ar [27]

<h3>Answer: D) 130.5 degrees</h3>

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Work Shown:

$c^2 = a^2 + b^2 - 2*a*b*\cos(C)\\\\10^2 = 5^2 + 6^2 - 2*5*6*\cos(x)\\\\100 = 25 + 36 - 60*\cos(x)\\\\100 = 61 - 60*\cos(x)\\\\100 - 61 = - 60*\cos(x)\\\\39 = - 60*\cos(x)\\\\\cos(x) = \frac{39}{-60}\\\\\cos(x) = -0.65\\\\x = \arccos(-0.65)\\\\x \approx 130.5416\\\\x \approx 130.5\\\\$

Note: I used the law of cosines. Make sure your calculator is in degree mode.

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