객관식
Translate & solve the percent problems below.
Carson bought some new sneaker on sale for \$250. The sale price was 65% of the original price. What was the original price?
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1. Introduction to Macroeconomics
Percentage and Decimal Review
객관식
A reservoir's water level decreased by 20% over the summer due to evaporation. If the water level is currently at 120 million liters, how much water was there initially?
A
24 million liters
B
150 million liters
C
96 million liters
D
30 million liters
검증된 단계별 안내1
Identify the given information: the water level decreased by 20%, and the current water level is 120 million liters.
Understand that a 20% decrease means the current water level is 80% (100% - 20%) of the initial water level.
Express the relationship between the current water level and the initial water level using the equation: \(\text{Current Level} = 0.80 \times \text{Initial Level}\).
Rearrange the equation to solve for the initial water level: \(\text{Initial Level} = \frac{\text{Current Level}}{0.80}\).
Substitute the known current water level (120 million liters) into the equation to find the initial water level.
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