3 years ago

Please answer this is so urgent

Mathematics

1 answer:

kolezko [41]3 years ago

8 0

The answer is 4565 / 63

Sorry this might be to late...

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Of the 220 tickets available for a school play, 45% have been sold.

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2 years ago

Which number is irrational?<br><br> A.0.3 B. C.0.777... D.0.454545…

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Each of A, C, and D are rational, so presumably B is the answer here.

A is rational, since $10\times0.3=3$ , so $0.3=\dfrac3{10}$ .

C is also rational. If $x=0.777\ldots$ , then $10x=7.777\ldots$ . This would mean $10x-x=9x=7$ , and so $x=\dfrac79$ .

D is rational by a similar argument. If $x=0.4545\ldots$ , then $100x=45.4545\ldots$ . So, $100x-x=99x=45$ , which means $x=\dfrac{45}{99}=\dfrac5{11}$ .

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3 years ago

A triangle has two angles that measure 73 degrees and 38 degrees.

givi [52]

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