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belka [17]
3 years ago
15

Math when is the sum of two negative mixed numbers an integer

Mathematics
1 answer:
FrozenT [24]3 years ago
5 0
The short answer is: when their fractions add up to full integers.

For examples, two halves make up a whole, or

\frac{1}{2} + \frac{1}{2}=1

so the mixed numbers with those will add up to full integers:

-12\frac{1}{2} + (-3\frac{1}{2})=(-(12+3+1)=-16

but if they don't add up to an interger, the whole sum won't be an integer:


-12\frac{3}{4} + (-3\frac{3}{4})=(-(12+3+1\frac{1}{2})=-16\frac{1}{2}






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{\qquad\qquad\huge\underline{{\sf Answer}}}

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Step-by-step explanation:

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2 years ago
In the figure to the right, AE + DC = 1 1/5 cm, AB = 1 3/4 cm, DE = 1 1/4 cm, and BC = 1 3 /10 cm. Find the perimeter of the fig
pentagon [3]

Answer:

The perimeter of the figure = 9.5 cm

Step-by-step explanation:

<em>Note: You probably missed to add the figure, but after a little research I found and am attaching the figure. I have answered your question based on the reference of that figure. But, I hope you would learn the concept so that you could solve any question based on this concept. So, please check the figure.</em>

<em>Solution:</em>

The perimeter of the figure is the sum of all the sides of the given figure as shown in the attached figure.

So, here is the formula to calculate the perimeter.

                <em>Perimeter </em>=<em> AB + DE + BC + AE + BC  </em>

As AE + DC = 1 1/5 cm, AB = 1 3/4 cm, DE = 1 1/4 cm, and BC = 1 3/10 cm

Therefore,

<em>Perimeter</em> = 1 3/4  + 1 1/4  + 13/10 + 1 1/5           ∵ AE + BC = 1 1/5

                                   = (130  + 110  + 52 + 88) / 40

                                   = 380/40  

                                   = 9.5 cm

So, the perimeter of the figure is = 9.5 cm

Keywords:  perimeter

Learn more about perimeter of polygon from brainly.com/question/13393967

#learnwithBrainly

5 0
2 years ago
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