"The interesting woman has eighty shoes."
Translation:De interessante vrouw heeft tachtig schoenen.
Yes it does. You don't want to leave out the t, because -achtig is a suffix that means like or similar to. E.g. vergeet = forget, vergeetachtig = forgetful, kat = cat, katachtig = catlike (e.g. great football keepers usually have katachtige reflexen).