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12345 [234]
2 years ago
14

I need help with this

Mathematics
1 answer:
ioda2 years ago
8 0

Answer:

<em>Perimeter of FGH = </em><em>192</em>

Step-by-step explanation:

42 / 28 = 1.5

50 x 1.5 = 75

44 x 1.5 = 66

34 x 1.5 = 51

75 + 66 + 51 = 192

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Answer:

<u>900</u> black and white copies are printed.

Step-by-step explanation:

Given:

For every 9 black and white copies printed there are 2 color copies printed.

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<em>Dividing both sides by 2 we get:</em>

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 The distance between city A and B is 600 km. The first train left A and headed towards B at the speed of 60 km/hour. The secon
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keep in mind, that "t" is the time when the train at A station, left towards B station

they met, at some time "t", and by the time that happened, train from A
which started 3 hours earlier, had already covered "d" distance,
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a_1=96;\ a_2=48;\ a_3=24;\ a_4=12;\ a_5=6\\\\a_1=a_2:2\to96:2=48\\a_2=a_3:2\to48:2=24\\a_3=a_2:2\to24:2=12\\a_4=a_3:2\to12:2=6\\\\therefore\\\\a_n=96:2^{n-1}=\frac {96}{2^{n-1}}\\\\check:\\a_1=\frac{96}{2^{1-1}}=\frac{96}{1^0}=96\\a_2=\frac{96}{2^{2-1}}=\frac{96}{2^1}=\frac{96}{2}=48\\a_3=\frac{96}{2^{3-1}}=\frac{96}{2^2}=\frac{96}{4}=24\\\vdots
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3 years ago
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