Which equation represents the sentence, "Three times the number m plus twice the quantity n plus 5 is equal to 20"?
1 answer:
Answer: Option 'D' is correct.
Explanation:
Since we have given that
"Three times the number m plus twice the quantity n plus 5 is equal to 20"
So, Equation becomes
As it is said that
three times the number m i.e.
twice the quantity n plus 5 i.e.
Plus both the quantity i.e.
and make them equal to 20 i.e.
Hence, Option 'D' is correct.
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Answer:
4±√5
EXPLAINED ANSWER:
Since the variable is a binomial and it is squared, we apply square root on both side, and apply the ± sign on the right side (since the solution of a square root can be both positive and negative), and later pass the 4 positive to the other side.
√25 can be (5)(5) or (-5)(-5)
