C - no solution
you take the second solution and times the entire equation by -1
then simply
and you get 0x + 0y = 20
Answer:
7 mg, 7 centigrams, 7g, 7kg
She has to score at least 86 on her fifth test.
Further explanation:
We will use the average formula to find the fifth value.
Given

We have to find x5
The formula for average is:


She has to score at least 86 on her fifth test.
Keywords: Average, Word Problems
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Benny got $3.26 back from his purchase
It's 14.285714%
So, simplified it would be 14.3% because you round the 2 up since theres an 8 behind it.