Evaluate 8a-1+0.5 b when a=(1)/(4) and b=10.

Substitute values into expression: Substitute the given values of a and b into the expression. Substitute a = 1/4 and b = 10 into the expression 8a - 1 + 0.5b. Expression: 8(1/4) - 1 + 0.5(10)Multiply by 1/4: Multiply 8 by 1/4. 8 times 1/4 equals 2. Calculation: 8 * (1/4) = 2Multiply by 0.5: Multiply 0.5 by 10. 0.5 times 10 equals 5. Calculation: 0.5 * 10 = 5Combine and subtract: Combine the results from Step 2 and Step 3 and subtract 1. Combine 2 (from Step 2) and 5 (from Step 3) and then subtract 1. Calculation: 2 + 5 - 1 = 7 - 1 = 6

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Evaluate
8a-1+0.5 b when
a=(1)/(4) and
b=10.

Evaluate $\newline$ $8a-1+0.5b$ when $\newline$ $a=\frac{1}{4}$ and $\newline$ $b=10$ .

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Math Problems

Algebra 1

Evaluate variable expressions involving rational numbers

Full solution

Q. Evaluate

\newline

8a-1+0.5b

when

\newline

a=\frac{1}{4}

and

\newline

b=10

Substitute values into expression: Substitute the given values of $a$ and $b$ into the expression. $\newline$ Substitute $a = \frac{1}{4}$ and $b = 10$ into the expression $8a - 1 + 0.5b$ . $\newline$ Expression: $8\left(\frac{1}{4}\right) - 1 + 0.5(10)$
Multiply by $1$ / $4$ : Multiply $8$ by $1/4$ . $\newline$ $8$ times $1/4$ equals $2$ . $\newline$ Calculation: $8 \times (1/4) = 2$
Multiply by $0$ . $5$ : Multiply $0.5$ by $10$ . $0.5$ times $10$ equals $5$ . Calculation: $0.5 \times 10 = 5$
Combine and subtract: Combine the results from Step $2$ and Step $3$ and subtract $1$ . Combine $2$ (from Step $2$ ) and $5$ (from Step $3$ ) and then subtract $1$ . Calculation: $2 + 5 - 1 = 7 - 1 = 6$