If the company makes 50 deliveries in 5 days, he makes 50/5=10 deliveries per day. Therefore, 400 deliveries will take 400/10=40 days. D is the correct answer.
Answer:
it is 1/4
Step-by-step explanation:
Answer: Y = -y - 12
Step-by-step explanation:
By using dimensional analysis, this problem can be simple.
B
