Chapter 7: Q12. (page 247)

Find the value of X.
$\frac{8}{x} = \frac{2}{5}$

Short Answer

Expert verified

The value of x is 20.

Step by step solution

Step 1. Given information.

The ratio here given is,

$\frac{8}{x} = \frac{2}{5}$

Step 2. Concept and Formula Used.

The properties of proportion,

if $\frac{a}{b} = \frac{c}{d}$ then, $a d = b c$

The given ratio is $\frac{8}{x} = \frac{2}{5}$ ,

Step 3. Use the property of proportion, if ab=cd then,ad=bc .

Then,

$40 = 2 x$

Step 4. Divide both sides by 2.

$\begin{array}{l} \frac{2 x}{2} = \frac{40}{2} \\ x = 20 \end{array}$

Therefore, the value of X is20 .

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Find the value of X.
$\frac{8}{x} = \frac{2}{5}$

Short Answer

Step by step solution

Step 1. Given information.

Step 2. Concept and Formula Used.

Step 3. Use the property of proportion, if ab=cd then,ad=bc .

Step 4. Divide both sides by 2.

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Find the value of X.8x=25

Short Answer

Step by step solution

Step 1. Given information.

Step 2. Concept and Formula Used.

Step 3. Use the property of proportion, if ab=cd then,ad=bc .

Step 4. Divide both sides by 2.

One App. One Place for Learning.

Most popular questions from this chapter

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Find the value of X.
$\frac{8}{x} = \frac{2}{5}$