QuestionRafael represents "a number, $n$ , decreased by thirty-one" and evaluates it for $n=29$ . Which statements are true?

Studdy Solution

STEP 1

Assumptions1. The expression represents "a number, $n$ , decreased by thirty-one." . We need to evaluate the expression for $n=29$ .

STEP 2

First, let's write the expression that represents "a number, $n$ , decreased by thirty-one." In mathematical terms, "decreased by" means subtraction. So, the expression is $n -31$

STEP 3

Now, we need to evaluate this expression for $n=29$ . That means we substitute $n$ with $29$ in the expression.
$29 -31$

STEP 4

Calculate the value of the expression.
$29 -31 = -2$ So, the statements that are true about the expression and its evaluation are1. The expression for "a number, $n$ , decreased by thirty-one" is $n -31$ .
2. When $n=29$ , the value of the expression $n -31$ is $-2$ .

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