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Percentages
Per cent means per hundred; every percentage problem is a fraction over 100.
“15% of 80” means 15 hundredths of 80: multiply by 15/100. The same idea handles increases (multiply by 1.15) and decreases (multiply by 0.85), and reverse questions (“80 is 15% of what?”) become a one-line equation.
Жұмыстағы мысал: what is 15% of 80
Қадам сайын
- 15 \cdot \frac{1}{100} \cdot 80 = 12
Evaluate.
Жауап беріңіз
12