Math
posted by Toni .
Bayside Insurance offers two health plans. Under plan A, Giselle would have to pay the first $50 of her medical bills, plus 30% of the rest. Under plan B, Giselle would pay the first $90, but only 25% of the rest. For what amount of medical bills will plan B save Giselle money? Assume she has over $90 in bills.

50 + .3(x50) = 90 + .25 (x90)
50 + .3 x  15 = 90 + .25 x  22.5
.05 x = 32.5
x = $650
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