Question Simplify the expression $\frac{9x}{x-8}$ and evaluate it when $x=0.8$ .

Studdy Solution

STEP 1

Assumptions1. The expression is $\frac{9x}{x-8}$ . The value of $x$ is $0.8$

STEP 2

We need to substitute the given value of $x$ into the expression. $\frac{9x}{x-8}$

STEP 3

Substitute $x =0.8$ into the expression.
$\frac{9(0.8)}{0.8-8}$

STEP 4

Perform the multiplication in the numerator.
$\frac{7.2}{0.8-8}$

STEP 5

Perform the subtraction in the denominator.
$\frac{7.2}{-7.2}$

STEP 6

Perform the division to simplify the expression.
$\frac{.2}{-.2} = -1$ The expression evaluates to $-1$ when $x =0.8$ .

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Question Simplify the expression $\frac{9x}{x-8}$ and evaluate it when $x=0.8$ .

Studdy Solution

STEP 1

Assumptions1. The expression is $\frac{9x}{x-8}$ . The value of $x$ is $0.8$

STEP 2

We need to substitute the given value of $x$ into the expression. $\frac{9x}{x-8}$

STEP 3

Substitute $x =0.8$ into the expression.
$\frac{9(0.8)}{0.8-8}$

STEP 4

Perform the multiplication in the numerator.
$\frac{7.2}{0.8-8}$

STEP 5

Perform the subtraction in the denominator.
$\frac{7.2}{-7.2}$

STEP 6

Perform the division to simplify the expression.
$\frac{.2}{-.2} = -1$ The expression evaluates to $-1$ when $x =0.8$ .

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Question Simplify the expression 9xx−8\frac{9x}{x-8}x−89x​ and evaluate it when x=0.8x=0.8x=0.8.

Studdy Solution

STEP 1

Assumptions1. The expression is 9xx−8\frac{9x}{x-8}x−89x​ . The value of xxx is 0.80.80.8

STEP 2

We need to substitute the given value of xxx into the expression.9xx−8\frac{9x}{x-8}x−89x​

STEP 3

Substitute x=0.8x =0.8x=0.8 into the expression.9(0.8)0.8−8\frac{9(0.8)}{0.8-8}0.8−89(0.8)​

STEP 4

Perform the multiplication in the numerator.7.20.8−8\frac{7.2}{0.8-8}0.8−87.2​

STEP 5

Perform the subtraction in the denominator.7.2−7.2\frac{7.2}{-7.2}−7.27.2​

STEP 6

Perform the division to simplify the expression..2−.2=−1\frac{.2}{-.2} = -1−.2.2​=−1The expression evaluates to −1-1−1 when x=0.8x =0.8x=0.8.

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Question Simplify the expression $\frac{9x}{x-8}$ and evaluate it when $x=0.8$ .

Assumptions1. The expression is $\frac{9x}{x-8}$ . The value of $x$ is $0.8$

We need to substitute the given value of $x$ into the expression. $\frac{9x}{x-8}$

Substitute $x =0.8$ into the expression.
$\frac{9(0.8)}{0.8-8}$

Perform the multiplication in the numerator.
$\frac{7.2}{0.8-8}$

Perform the subtraction in the denominator.
$\frac{7.2}{-7.2}$

Perform the division to simplify the expression.
$\frac{.2}{-.2} = -1$ The expression evaluates to $-1$ when $x =0.8$ .