Answer: Hello there! Your answer for this question is option (D).
Step-by-step explanation: The answer is option (D) because there is 10 students that completed 10-19 problems and 8 students that completed 0-9 problems.
10 + 8 = 18
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Answer:
2x + 3y = 15
x + y = 6 --> 2x + 2y = 12
By elimination method
-2 - 2y= -12
y = 3
x + y = 6
--> x = 3
uhmm this is probably so wrong
x2 = 8 over 2
Simplify
8 over 2
to 44
{x}^{2}=4x
Take the square root of both sides
x=\pm \sqrt{4}x=±√ 4
x= plus or minus 2
Step-by-step explanation: