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timama [110]
3 years ago
10

What is the value of x?

Mathematics
2 answers:
Goshia [24]3 years ago
3 0

Answer:

value of x is 20

Step-by-step explanation:

If u got any doubt regarding this u can ask anytime :)

Luden [163]3 years ago
3 0
Value of x is 40.

- Since it is a right triangle, all must add up to 90°.
- 29+21 is 50
- 90-50 is 40.
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Two sections of a class took the same quiz. Section A had 15 students who had a mean score of 80, and Section B had 20 students
Alex17521 [72]

Answer:

85.7

Step-by-step explanation:

Given that two sections of a class took the same quiz. Section A had 15 students who had a mean score of 80, and Section B had 20 students who had a mean score of 90.

Section A total score = 15*80=1200

Section B total score 20*90 = 1800

Overall total score=3000

Overall total students = 15+20 =35

Hence overall mean = \frac{3000}{35} \\=85.7143

rounding off to one decimal place

overall mean = 85.7

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ki77a [65]

Answer:

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