Luciano has a collection of 1,200 pennies. Of these pennies, 25% are dated before 1980. 35% are dated from 1980 to 2000, and the rest are dated after 2000.

Answer 1

To analyze Luciano's collection of 1,200 pennies, let's break down the percentages for each date range.

1. Pennies dated before 1980:

   • 25% of 1,200 pennies
   • Calculation: \( 0.25 \times 1200 = 300 \) pennies

2. Pennies dated from 1980 to 2000:

   • 35% of 1,200 pennies
   • Calculation: \( 0.35 \times 1200 = 420 \) pennies

3. Pennies dated after 2000:

   • We need to calculate the remaining percentage.
   • First, we find the total percentage accounted for by the first two categories:
     • \( 25% + 35% = 60% \)
   • This means 40% of the pennies are dated after 2000.
   • Calculation: \( 0.40 \times 1200 = 480 \) pennies

To summarize, Luciano's collection consists of:

• 300 pennies dated before 1980
• 420 pennies dated from 1980 to 2000
• 480 pennies dated after 2000