Charlotte took a math test. There were 15 questions of which she answered 3 incorrectly. At this rate, how many questions should Charlotte expect to answer incorrectly if she answers a total of 135 questions? A.
45

B.
27

C.
9

D.
5

Solved

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Ответ:

datboyjulio21

21.04.2022

Mathematics

$3(x-2)=2x+10\\3x-6=2x+10 | +6\\3x=2x+16 | -2x\\x = 16$

30.

a) $180^{0} - 134^0-22^0=24^0$

r=24^0

$90^0=2x^0+3x^0\\90^0=5x^0 |:5\\x^0=18^0$

2x^0= 2* 18^0=36^0

3x^0=3*18^0=54^0

Take care!

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Charlotte took a math test. There were 15 questions of which she answered 3 incorrectly. At this rate, how many questions should Charlotte expect to answer incorrectly if she answers a total of 135 questions? A. 45 B. 27 C. 9 D. 5