40 minutes is 2/3 of an hour.
30 miles per hour x 2/3 hour = 20 miles.
30 minutes = 1/2 hour.
60 miles per hour x 1/2 hour = 30 miles.
Total = 20 + 30 = 50 miles.
Answer:
-1
Step-by-step explanation:
4x-1=-4
-4+3=-1
12 of the cookies are chocolate chip. 18 divided by 3 is 6. 2 multiplied by 6 is 12.
Answer:
Because there is a chance that one control group will get injured, or maybe even die.
Step-by-step explanation:
Putting one's life in danger is considered unethical and is well, illegal.