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Finley's pumpkin had a mass of 6.5 kilograms 
(kg) before he carved it. After it was carved, the pumpkin had a mass of 
3.9kg.
What was the percent decrease in the mass of the pumpkin?

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Finley's pumpkin had a mass of 66.55 kilograms (kg) (\mathrm{kg}) before he carved it. After it was carved, the pumpkin had a mass of 3.9 kg 3.9 \mathrm{~kg} .\newlineWhat was the percent decrease in the mass of the pumpkin?\newline _____\(\%\) \newline

Full solution

Q. Finley's pumpkin had a mass of 66.55 kilograms (kg) (\mathrm{kg}) before he carved it. After it was carved, the pumpkin had a mass of 3.9 kg 3.9 \mathrm{~kg} .\newlineWhat was the percent decrease in the mass of the pumpkin?\newline _____\(\%\) \newline
  1. Calculate Mass Difference: Calculate the difference in mass before and after the pumpkin was carved.\newlineOriginal mass: 6.5kg6.5\,\text{kg}\newlineMass after carving: 3.9kg3.9\,\text{kg}\newlineDifference in mass: 6.5kg3.9kg=2.6kg6.5\,\text{kg} - 3.9\,\text{kg} = 2.6\,\text{kg}
  2. Determine Percent Decrease: Determine the percent decrease in mass based on the original mass.\newlinePercent decrease = (Difference in mass/Original mass)×100%(\text{Difference in mass} / \text{Original mass}) \times 100\%\newlinePercent decrease = (2.6kg/6.5kg)×100%(2.6 \, \text{kg} / 6.5 \, \text{kg}) \times 100\%
  3. Perform Calculation: Perform the calculation to find the percent decrease.\newlinePercent decrease = (2.6/6.5)×100%(2.6 / 6.5) \times 100\%\newlinePercent decrease = 0.4×100%0.4 \times 100\%\newlinePercent decrease = 40%40\%