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The high temperature one summer day was 90 degree .an afternoon thunderstorm lowered the temperature to 72 degrees . What is the percent decrease in the temperature?

The high temperature one summer day was 90 degree .an afternoon thunderstorm lowered the temperature to 72 degrees . What is the percent decrease in the temperature?
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The high temperature one summer day was 90 degree .an afternoon thunderstorm lowered the temperature to 72 degrees . What is the percent decrease in the temperature?

User Ferro
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90 minus 72 is 18 so 18 over 90 is 0.2 so 20% decrease!!
User Llogan
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