The question is:
The volume of air an adult's lungs can hold decreases with age. The equation
V = 0.104h - 0.018a - 2.69 gives an estimate of the V(in liters) of a person's lungs for someone of height h inches and and age a years.
A. Using your own height (64) and and weight (155) in the above, calculate your estimated lung volume.
B. Calculate 90% of your lung volume.
C. Solve the equation above for the variable a.
D. Calculate how old you will be when your air volume is 90% of its current value. (Use your current height.)
The volume of air an adult's lungs can hold decreases with age. The equation
V = 0.104h - 0.018a - 2.69 gives an estimate of the V(in liters) of a person's lungs for someone of height h inches and and age a years.
A. Using your own height (64) and and weight (155) in the above, calculate your estimated lung volume.
B. Calculate 90% of your lung volume.
C. Solve the equation above for the variable a.
D. Calculate how old you will be when your air volume is 90% of its current value. (Use your current height.)