Question

the weight of water in a persons body varies directly with its body weight. the body of a 170 lb person contains 119 lbs of water. how much water is in a body of a person who weighs 120 lbs

Answer 1

Answer: i would say easily - 119-50 pounds = 69 so 169 pounds -step explanation: blood= weight (k)

y=kx

2

4.6 = 170k

finding the constant of variation

3

k= 0.02875

4

equation relates quarts of blood to weight

5

RESULT

4.6 = 170k

y= 0.02875x

y= 0.02875(175)= 5.03125