3 years ago

Describe three situations in which rounding could come in handy.

Mathematics

1 answer:

ryzh [129]3 years ago

4 0

Answer:

1. They help you with estimation

2. It makes numbers simpler and easier to do

3. Makes mental maths much quicker

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Verizon [17]

variablesAnswer:

They are adding variubles, (if there are parentheses multiply, but only after you actually do what is in the parentheses)

Step-by-step explanation:

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(2x, 2y) yes it is. it was transformed by one, adding variables and two, by making the equation a multiplication problem.

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2 years ago

150 is 200% of what number please show work worth 10 pts

GrogVix [38]

150/x = 200/100 (2/1)
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3 years ago

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AleksAgata [21]

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4 years ago

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AVprozaik [17]

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3 years ago

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

Savatey [412]

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