(X+12) + 140 = 180
X + 12 + 140 = 180
X + 152 = 180
X = 180 - 152
X = 28
Answer: It said <u>2</u> chickens, not 3.
Also, when you got your final answer, you have to subtract it from 20, because you want to find the change.
Step-by-step explanation:
This is the mistakes I saw, and I mentioned them above. :)
9hours x 60minutes = 540 minutes
(Presuming he actually sat and read the whole time)
Answer:
800
Step-by-step explanation:
Hope this helps