Problema Solution
Isurance company offers two health plans. Under planA, Frank would have to pay the first $100 of his medical bills, plus 35% of the rest. Under plan B, he would pay the first $110, but only 20%of the rest. For what amount of medical bills will plan B save Frank money? Assume he has over $110 in medical bills.
Answer provided by our tutors
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Let "x" be the amount of the bills.
Plan A: A(x) = 100 + 0.25x
Plan B: B(x) = 110 + 0.20x
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For what amount of medical bills will plan B save Giselle money?
110 + 0.20x < 100 + 0.25x
0.05x > 10
(5/100)x > 10
x > (100/5)*10
x > $200
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that means he will save money for more than $200.