QuestionWhich expression equals "twice the sum of a number and three"? $2(n+3)$ $2 n+3$ $2(2 n-3)$ $2+(2 n+3)$

Studdy Solution

STEP 1

Assumptions1. "n" represents the number. . The phrase "twice the sum of a number and three" needs to be translated into a mathematical expression.

STEP 2

First, let's break down the phrase "twice the sum of a number and three". The word "sum" in mathematics implies addition. So, "the sum of a number and three" can be represented as "(n +)".
$Sum = n +$

STEP 3

The phrase "twice the sum" means that we multiply the sum by2. So, "twice the sum of a number and three" can be represented as "2(n +3)".
$Twice\, the\, sum =2 \times (n +3)$

STEP 4

So, the mathematical expression that represents the phrase "twice the sum of a number and three" is "2(n +3)".
The correct expression is $2(n+3)$ .

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