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Liula [17]
3 years ago
5

Round 81.139 to the nearest tenth

Mathematics
2 answers:
Gnesinka [82]3 years ago
6 0
<em>If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up (+1).</em>


<em>If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down (no change).</em>

81.1<u>3</u>9 ≈ <u>81.1</u>
alex41 [277]3 years ago
5 0
The first place after the decimal place is the tenth's place, then next is the hundreth's and so on

when rounding, if the number is 5 or more then round up , if less than 5, round down
exg\
.5 runded up=1
.4 rounded would be 0


so 81.139
disregard the 9
81.13
3 is less than 5
81.10
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(1 + <em>x</em>)(1 + <em>y</em>) = 1 + <em>x</em> + <em>y</em> + <em>x y</em>

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and

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