Answer:
1
Step-by-step explanation:
Answer:
A. 140
Step-by-step explanation:
3 hours converts to 180 minutes, so 180-40=140, therefore A is correct.
Answer:
x + 11 = 10
Step-by-step explanation:
Let the required number be x.
Quotient = x + 4 + 7 = 10
= x + 11 = 10
21, if it leaks 3.5 liters in 10 minutes you multiply by 6 because their is 60 mins in one hour and you will get 21.