Respuesta :
Answer:
Hello!!
If Ethan has a collection of 1,500 pennies, and of these pennies, 15% are dated before 1980, 45% are dated from 1980 to 2000, and the rest are dated after 2000
There are 600 pennies in Ethan's collection dated after 2000
Step-by-step explanation:
[tex]1500[/tex] × [tex]0.15=225[/tex] pennies
[tex]1500[/tex] × [tex]0.45=675[/tex] pennies
[tex]1500[/tex] × [tex]0.40=600[/tex] pennies
[tex]45 + 15=60\\100-60=40[/tex]
Hope this helps!!