SOLUTION: bayside insurance offers two health plans. under plan a, giselle would have to pay the first $120 of her medical bills, plus 30% of the rest. under the plan b, giselle would pay th

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: bayside insurance offers two health plans. under plan a, giselle would have to pay the first $120 of her medical bills, plus 30% of the rest. under the plan b, giselle would pay th      Log On


   

Question 452157: bayside insurance offers two health plans. under plan a, giselle would have to pay the first $120 of her medical bills, plus 30% of the rest. under the plan b, giselle would pay the first $160 , but only 20% of the rest. for what amount of medical bills will plan b save giselle money? assume she has over $160 in bills giselle would save with plan b if she had more than $ in bills.
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
Plan A 120 + 0.3 x
Plan B 160 + 0.2 x

Plan A > Plan B
300 + 0.1 x > 500 + 0.03 x
0.1 x -0.03 x > 500 -300
0.07 x > 200
/ 0.07
x> 200 / 0.07
x> 2857.14
For x> 2857 Plan A expensive
OR Plan B will save money