7.AT.A.4: Solve ratio and percent problems in context (e.g., simple interest, tax, markups and markdowns, tips, commissions, fees, percent increase or decrease, and percent error) by applying proportional reasoning.

Solve ratio and percent problems in context (e.g., simple interest, tax, markups and markdowns, tips, commissions, fees, percent increase or decrease, and percent error) by applying proportional reasoning.

Example Problems

Solve for x:

\frac{2}{3} = \frac{8}{x}

Solve for x:

\frac{x}{5} = \frac{6}{3}

Solve for x:

\frac{5}{x} = \frac{1}{4}

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