CPM Homework Help : INT2 Problem 1-7

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1-7.

Solve each equation, then check your solutions.

$\frac { x } { 8 } = \frac { 3 } { 4 }$
Hint (a):
Multiply both sides by $8$ .

$8\cdot\frac{\textit{x}}{8}=\frac{3}{4}\cdot8$

$\ \ \ \ \ \ x=\frac{24}{4}$
Answer (a):
$x=6$

$\frac{2}{5}=\frac{x}{40}$
Hint (b):
What can you multiply both sides of the equation by to eliminate the denominators?

$\frac { 1 } { 8 } = \frac { x } { 12 }$
Answer (c):
$x=1.5$

$\frac { x } { 10 } = \frac { 12 } { 15 }$
Hint (d):
Use the method from part (a).

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