CPM Homework Help : CCA Problem 10-39

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Home > CCA > Chapter 10 > Lesson 10.2.2 > Problem 10-39

10-39.

Solve the equations below by first changing each equation to a simpler equivalent equation. Check your solutions.

$3000x-2000=10{,}000$
Hint (a):
Divide by a common factor, then solve.

$\frac{x^2}{2}+\frac{3x}{2}-5=0$
Hint 1(b):
Multiply by the denominator to remove the fractions.
Hint 2(b):
Use factoring or the Quadratic Formula to solve.

$\frac{5}{2}x-\frac{1}{3}=13$
Hint (c):
Multiply the equation by a common denominator.

$\frac{3}{10}+\frac{2x}{5}=\frac{1}{2}$
Hint (d):
See part (c) for help.
Answer (d):
$\textit{x}=\frac{1}{2}$

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