Evaluate 0.1 m+8-12 n when m=30 and n=(1)/(4).

Substitute values into expression: Substitute the given values for m and n into the expression. Expression: 0.1m + 8 - 12n Substitute m = 30 and n = 1/4. Expression after substitution: 0.1(30) + 8 - 12(1/4)Calculate 0.1 times 30: Calculate the value of 0.1 times 30. 0.1 * 30 = 3Calculate 12 times 1/4: Calculate the value of 12 times 1/4. 12 * 1/4 = 3Substitute calculated values into expression: Substitute the calculated values back into the expression. Expression with values: 3 + 8 - 3Simplify expression: Simplify the expression by performing the addition and subtraction. 3 + 8 - 3 = 11 - 3 11 - 3 = 8

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Evaluate
0.1 m+8-12 n when
m=30 and
n=(1)/(4).

Evaluate $0.1 m + 8 - 12 n$ when $m = 30$ and $n = \frac{1}{4}$ .

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Math Problems

Algebra 1

Evaluate variable expressions involving rational numbers

Full solution

Q. Evaluate

0.1 m + 8 - 12 n

when

m = 30

and

n = \frac{1}{4}

Substitute values into expression: Substitute the given values for m and n into the expression. $\newline$ Expression: $0.1m + 8 - 12n$ $\newline$ Substitute $m = 30$ and $n = \frac{1}{4}$ . $\newline$ Expression after substitution: $0.1(30) + 8 - 12\left(\frac{1}{4}\right)$
Calculate $0.1$ times $30$ : Calculate the value of $0.1$ times $30$ . $\newline$ $0.1 \times 30 = 3$
Calculate $12$ times $\frac{1}{4}$ : Calculate the value of $12$ times $\frac{1}{4}$ . $\newline$ $12 \times \frac{1}{4} = 3$
Substitute calculated values into expression: Substitute the calculated values back into the expression. $\newline$ Expression with values: $3 + 8 - 3$
Simplify expression: Simplify the expression by performing the addition and subtraction. $\newline$ $3 + 8 - 3 = 11 - 3$ $\newline$ $11 - 3 = 8$