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erik [133]
3 years ago
11

PLEASSSE hep me its math

Mathematics
2 answers:
Alex3 years ago
6 0

Answer:

250

Step-by-step explanation:

40% = 100

100 x 2 = 200 and 80%

40/2 = 20%

100/2 = 50

20% + 80% = 100%

50 + 200 = 250

plz mark me brainliest i need it

lana [24]3 years ago
4 0
There are 250 sixth grade students
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vladimir1956 [14]

Answer:

Step-by-step explanation:

You could use the 'brute force' method, which would be to simply write out all the possible subsets.  We could avoid repetition within the subsets.

{2} would be the first subset; it contains one even number.

Next would be {2, 4}, next {2, 4, 6} ... {2, 4, 6, ... 94, 96, 98, 100}.  Provided that we correctly understand what this problem is asking for, writing out and then counting all these subsets should answer the question.

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3 years ago
In quadrilateral ABCD, points M, N, P, Q, R, S are the midpoints of sides AB , BC , CD , DA , AC , and BD . Prove that △MQR≅△PNS
Archy [21]

Answer:

Applying mid point theorm, △MQR≅△PNS

Step-by-step explanation

As there are all midpoints in the problem, we will try using midpoint theorm.

<em>Mid point theorm states that, when the two midpoints of a triangle are joined, the corresponding side is parallel to third side and is half the length of third side.</em>

As given in the figure, join the points to construct triangle.

Let side MR be x, MQ be y and QR be z.

<em>In triangle ABC, applying mid point theorm, BC = 2x.</em>

<em>Again in triangle BCD applying mid point theorm, PS = x.</em>

<em>In triangle ADC, applying mid point theorm, DC = 2z.</em>

<em>Again in triangle BDC applying mid point theorm, NS = z.</em>

<em>In triangle ABD, applying mid point theorm, BD = 2y.</em>

<em>Again in triangle BCD applying mid point theorm, NP = y.</em>

Thus, corresponding 3 sides are equal and, △MQR≅△PNS

8 0
3 years ago
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Answer:

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Step-by-step explanation:

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60 = 2 × 30
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100 = 5 × 20
20= 5 × 4
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The 3, 5, 5, 5, 2 and 2 are all the prime factors of 1500. So, 2² + 3 + 5³
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3 years ago
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