An anatomy model of an adult human is 7 inches tall. Most adult humans are between 5 feet and 6 feet tall. What is the approximate scale factor of the model?
A. 1/20
B. 1/10
C. 10
D. 20
I think the answer is A
I disagree. 6 ft is about 70 inches
Well my second answer was B
To find the approximate scale factor of the model, we need to compare the height of the model to the average height of an adult human.
Step 1: Convert the heights to the same unit of measurement.
The height of the model is given in inches, so we need to convert the average height range from feet to inches. There are 12 inches in one foot.
5 feet = 5 * 12 inches = 60 inches
6 feet = 6 * 12 inches = 72 inches
Now we have the average height range in inches: 60 inches to 72 inches.
Step 2: Calculate the scale factor.
The scale factor is the ratio of the height of the model to the average height of an adult human.
Scale factor = height of model / average height of an adult human
Scale factor = 7 inches / (60 inches + 72 inches) = 7 inches / 132 inches
Simplifying the ratio, we get:
Scale factor = 1/19
Approximately, the scale factor is 1/20.
So the answer is A. 1/20.