Digital SAT Math Practice Question #28
Test your problem-solving accuracy on this official-caliber item. Select an answer choice to check your reasoning instantly.
Break down the given equation or algebraic constraints step-by-step. Isolate the target variable before substituting known quantities.
Elimination Shortcut: Check the extremes or test answer choices starting with C to binary search the correct magnitude.
If the item is discounted by 20%, the sale price represents 80% (or 0.80) of the original price. Let P be the original price. 0.80 * P = 64. Divide both sides by 0.80: P = 64 / 0.80 = 80. The original price was $80.00....
Distractor Analysis: Trap choice eliminates careless test-takers who confuse roots with coordinates...
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