Question

Which equation represents the sentence, "Three times the number m plus twice the quantity n plus 5 is equal to 20"?

A. 3m + 2n – 5 = 20
B. 3m + 2(n + 5) = 20
C. 3m + 2(n – 5) = 20
D. 3m(2n + 5) = 20

Answer 1

Answer: B, 3m + 2(n + 5) = 20. (I've done the test)

A, C, and D aren't it because it says 3 times the number m (3m) plus n plus 5 to the second power 2(n + 5), equals 20, and B is the only one that represents the equation.

Answer 2

Answer: Option 'D' is correct.

Step-by-step 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

`3m+2(n+5)=20`

As it is said that

three times the number m i.e.

`3m`

twice the quantity n plus 5 i.e.

`2(n+5)`

Plus both the quantity i.e.

`3m+2(n+5)`

and make them equal to 20 i.e.

`3m+2(n+5)=20`

Hence, Option 'D' is correct.