The volume of blood in a​ person's body is proportional to body weight. A person who weighs 140 pounds has approximately 4 quarts of blood. Estimate the number of quarts of blood in a person who weighs 100 pounds.

Answer 1

To estimate the number of quarts of blood in a person who weighs 100 pounds, we can set up a proportion:

140 pounds is to 4 quarts as 100 pounds is to x quarts

(140 pounds / 4 quarts) = (100 pounds / x quarts)

Solving for x, we get:

x = (100 pounds * 4 quarts) / 140 pounds
x = 400/140
x = 2.857

Therefore, a person who weighs 100 pounds would have approximately 2.857 quarts of blood.