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ivann1987 [24]
3 years ago
13

Helpppppppp meeeeeeeeeeeeee

Mathematics
2 answers:
Irina18 [472]3 years ago
7 0

Answer:

39, 51

Step-by-step explanation:

I havnt done geometrics in a while, but we can infer AB is the exact same as AD do to the lines stating that amking BD 2 90 degree angles leaving 39 and 51 as the only answer

Anestetic [448]3 years ago
4 0
It’s 39 -180 because they are completray
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Which of the following expressions represents “the quotient of nine times a number and seven ?
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Answer:

9n÷7

Step-by-step explanation:

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siniylev [52]

well, we know that 213.90 includes the 15% gratuity, so if the meal price was say "x", namely that is the 100%, and we add 15% to that, then 100% + 15% = 115%, so 213.90 is really the 115%.

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\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 213.90&115\\ x&100 \end{array}\implies \cfrac{213.9}{x}=\cfrac{115}{100}\implies 21390=115x \\\\\\ \cfrac{21390}{115}=x\implies 186=x


so since we know the meal without the tip is 186 bucks, the tip was then 213.90 - 186 = 27.90.

but they got extra potato wedges with butter and the waitress was wearing her best hat, they added $20 more, so the tip ended  up as 27.90 + 20 = 47.90.

now, if the cost of the meal was $186 and that is the 100%, what is 47.90 off of it in percentage?


\bf \begin{array}{ccll} amount&\%\\ \cline{1-2} 186&100\\ 47.90&x \end{array}\implies \cfrac{186}{47.90}=\cfrac{100}{x}\implies 186x=4790 \\\\\\ x=\cfrac{4790}{186}\implies x\approx \stackrel{\%}{25.75}

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Step-by-step explanation:

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Then 60 minutes by 0.412

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