Round each number to the nearest 10 212+87 then add

2 answers:

8 0

~212 rounded to the nearest 10 would be 210.

~87 rounded to the nearest 10 would be 90.

210 + 90 = 300

Your answer would be 300.
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Hope this helps!!!! :D

uranmaximum [27]3 years ago

6 0

300 is your nearest hundred

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<img src="https://tex.z-dn.net/?f=%20%7C7%20%2B%208x%7C%20%20%3E%205" id="TexFormula1" title=" |7 + 8x| > 5" alt=" |7 + 8x|

ExtremeBDS [4]

The absolute value is defined as

$|x|=\begin{cases}x&\text{if }x\ge0\\-x&\text{if }x$

So for example, if x = 3, then |x| = |3| = 3, since 3 is positive. On the other hand, if x = -5, then |x| = |-5| = -(-5) = 5, since -5 is negative. The absolute value is always positive.

For the inequality |7 + 8x| > 5, you consider the two cases where the argument to the absolute value (the expression you find inside the bars) is either positive or negative.

• If 7 + 8x ≥ 0, then |7 + 8x| = 7 + 8x, so that

$|7+8x|>5\implies 7+8x>5 \implies 8x>-2 \implies x>-\dfrac14$