dilution question?

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The transmission in Bob's truck hold 11 quarts of fluid. If Bob changes 5 quarts at a time, and allows the fluid to homogenize- what percent is old fluid and what percent is new fluid if he does this 4 times.

What would be the equation to use so you can graph this on a TI-83?

2007-09-02 13:59:46 · 2 answers · asked by schwartr88 3 in Science & Mathematics ➔ Mathematics

2 answers

It's easiest to calculate the percentage of old fluid and then subtract to get the percentage of new fluid.

Old % = 100*(6/11)^4 ≈ 8.8518544%

New % = 100 - Old ≈ 91.148146%

2007-09-02 14:12:06 · answer #1 · answered by Northstar 7 · 0⤊ 0⤋

Old fluid
(6 / 11) ^ 4 = 8.85%

New fluid
100 - 1.75 = 91.15%

2007-09-02 14:04:52 · answer #2 · answered by GeekCreole 4 · 0⤊ 0⤋