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Intermediate Algebra

OPENSTAX

$Math Studyset Vaia Explanations$ Math

OER 2017 Edition · 1346 pages

ISBN: 9780998625720

Chapter 7: Q 447 (page 738)

In the following exercise solve $\frac{x}{4} = \frac{3}{5}$

Short Answer

Expert verified

The solution is $x = \frac{12}{5}$

Step by step solution

01

Step 1. Given Information

$\frac{x}{4} = \frac{3}{5}$

02

Step 2. Solve

Multiply both sides by LCD.

$(5) (4) (\frac{x}{4}) = (5) (4) (\frac{3}{5}) 5 x = 12 x = \frac{12}{5}$

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Most popular questions from this chapter

Solve the equation $c = \frac{2}{a} + \frac{b}{5}$ for the variable $a$ .

The distance a moving body travels, $d$ , varies directly with the time, $t$ , it moves. The train travels 100 miles in 2 hours.

Write the equation that relates $d a n d t$ .
How many miles would it travel in 5 hours?

Solve the proportion $\frac{z}{z - 84} = - \frac{1}{5}$ .

In the following exercise, find

(a) $R (x) = f (x) + g (x)$

(b) $R (x) = f (x) - g (x)$ :

$f (x) = \frac{6 x}{x^{2} - 64} g (x) = \frac{3}{x - 8}$

In the following exercises, perform the indicated operations

$\frac{5 q}{p^{2} q - p^{2}} + \frac{4 q}{q^{2} - 1}$

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