Answer:
B
Step-by-step explanation:
Answer:
Neither. 72 students failed.
Step-by-step explanation:
40% of 180 is 72
Answer:
x = - 90
Step-by-step explanation:
Given
10x + 60 = 9x - 30 ( subtract 9x from both sides )
x + 60 = - 30 ( subtract 60 from both sides )
x = - 90