Respuesta :
x over 100 = 70 over 100
cross multiply 70 by 100, then divide by 100 to get 70, then subtract 70 from 100 to get 30.
so 30 students failed the test
cross multiply 70 by 100, then divide by 100 to get 70, then subtract 70 from 100 to get 30.
so 30 students failed the test
Answer:
the answer is 70
Step-by-step explanation:
each student counts as one percent
