Answer:
3.8s
Step-by-step explanation:
Solve for h=0, you will get t=3.75
Answer:
First question: A, Second question: B
Step-by-step explanation:
0.5= 1/2
0.25= 1/4
0.4= 2/5
Now, insert these numbers, as fractions, back into the equation:

Following PEMDAS you will get 1 as your answer.
Answer:
1. 5 hours
2. 4 hours
Reason:
Formula for speed is speed =
, if you want to find time, then take distance / speed, which will equal to 100 / 20 = 5 hours, and the same with 2.
Answer:
6 9/10
Step-by-step explanation: