For what value of x is 5x12-38-12 true-

The correct option is D 2110 5x/12 3/8=1/2 or 10x 9/24=1/2 or (10x 9)2 = 24 or 20x 18=24 or 20x =24 +18 ∴ x=42/20=21/10=21 ...

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Standard X

Mathematics

Solving Inequalities

For what valu...

Question

For what value of $x$ is $\frac{5 x}{12} - \frac{3}{8} = \frac{1}{2}$ true?

2 \frac{1}{10}

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10 \frac{1}{2}

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20

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10

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Solution

The correct option is D $2 \frac{1}{10}$
$\frac{5 x}{12} - \frac{3}{8} = \frac{1}{2}$
or $\frac{10 x - 9}{24} = \frac{1}{2}$
or $(10 x - 9) 2 = 24$
or $20 x - 18 = 24$
or $20 x = 24 + 18$
$∴ x = \frac{42}{20} = \frac{21}{10} = 2 \frac{1}{10}$

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For what value of x is 5x12−38=12 true?

The correct option is D 21105x12−38=12or 10x−924=12or (10x−9)2=24or 20x−18=24or 20x=24+18∴x=4220=2110=2110

For what value of $x$ is $\frac{5 x}{12} - \frac{3}{8} = \frac{1}{2}$ true?

The correct option is D $2 \frac{1}{10}$
$\frac{5 x}{12} - \frac{3}{8} = \frac{1}{2}$
or $\frac{10 x - 9}{24} = \frac{1}{2}$
or $(10 x - 9) 2 = 24$
or $20 x - 18 = 24$
or $20 x = 24 + 18$
$∴ x = \frac{42}{20} = \frac{21}{10} = 2 \frac{1}{10}$