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Evaluate the expression for $r = -4$ . $\newline$ Write your answer as a decimal or whole number. $\newline$ $8 + 4.8r =$ _____

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Evaluate variable expressions involving rational numbers

Full solution

Q. Evaluate the expression for

r = -4

.

\newline

Write your answer as a decimal or whole number.

\newline

8 + 4.8r =

_____

Identify Expression: Identify the expression to be evaluated. $\newline$ We are given the expression $8 + 4.8r$ and we need to substitute $r$ with $-4$ .
Substitute with $-4$ : Substitute $r$ with $-4$ in the expression. $\newline$ The expression becomes $8 + 4.8(-4)$ .
Multiply and Calculate: Multiply $4.8$ by $-4$ . $\newline$ $4.8$ multiplied by $-4$ equals $-19.2$ .
Add Result: Add the result from Step $3$ to $8$ . Now we add $-19.2$ to $8$ , which equals $-11.2$ .

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