"How many women are there in the team?"
Translation:כמה נשים יש בצוות?
נמצאות can be translated as 'located at' or 'present' which is not the specific meaning DL asked. Your version is not entirely wrong, but there is a difference between the words ''how many are there" (כמה יש) and " how many are located at/present". (כמה נמצאות).
I hope I helped... בהצלחה!