Answer
a) A = 76 mmHg B = 132 mmHg
b) $P_{tot} = 76*\frac{1}{2} + 132*\frac{1}{2} = 104 mm Hg$
c) $P_{tot} = 76*\frac{2}{7} + 132*\frac{5}{7} = 116 mm Hg$
Work Step by Step
a) A = 76 mmHg B = 132 mmHg
b) $P_{tot} = 76*\frac{1}{2} + 132*\frac{1}{2} = 104 mm Hg$
c) $P_{tot} = 76*\frac{2}{7} + 132*\frac{5}{7} = 116 mm Hg$