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lesya [120]
3 years ago
6

Trong một lớp học có $35$ sinh viên nói được tiếng Anh, $25$ sinh viên nói được tiếng Nhật trong đó có $10$ sinh viên nói được c

ả tiếng Anh và tiếng Nhật. Mỗi sinh viên trong lớp nói được ít nhất một trong hai: tiếng Anh hoặc tiếng Nhật. Hỏi sỹ số của lớp là bao nhiêu
Mathematics
1 answer:
Reil [10]3 years ago
8 0

Answer:

please write this question in English then I give answer

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B = 7, a = 5. So a + b is 13.
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Find the value of x in the triangle shown below.
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4 years ago
A) R is inversely proprtional to A                                 ,when R=12, A =1.5
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3 years ago
Given the median qr and trapezoid mnop what is the value of x 3x-8
Paha777 [63]

<u>Answer-</u>

The value of x was found to be 7.

<u>Solution-</u>

In the given trapezium, the parallel sides are NO, MP and QR is the median.

From the geometric properties of trapezium, we know that,

The median line is always parallel to the bases and its length is the average length of the bases.

\Rightarrow \frac{NO+MP}{2}=QR

\Rightarrow \frac{(3x-8)+(7x+4)}{2}=33

\Rightarrow 3x-8+7x+4=66

\Rightarrow 10x-4=66

\Rightarrow 10x=70

\Rightarrow x=7

Therefore, the value of x is 7.

8 0
4 years ago
Read 2 more answers
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