316,590 views
43 votes
43 votes
Suppose a man's scalp hair grows at a rate of 0.35 mm per day. What is the growth rate

in feet per year?

User Farkhod Abdukodirov
by
2.0k points

2 Answers

24 votes
24 votes

Answer:

approx. 0.42 feet per year

User Dexterous
by
2.7k points
15 votes
15 votes

Answer: ≈ 0.419 feet per year

Step-by-step explanation:

Units to know for this question:

➜ 365 days in a year

➜ 304.8 mm in a foot

First, we will find the number of mm the hair grows per year.

0.35 mm per day * 365 = 127.75 mm per year

Next, we will find out many feet that is.

127.75 mm per year / 304.8 mm in a foot ≈ 0.419 feet per year

User Mostafa Azadi
by
2.6k points