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sdas [7]
3 years ago
10

On his last credit card bill, Frank paid a variable finance rate of 1.5 percent on the first $500, and 1 percent

Mathematics
1 answer:
Nady [450]3 years ago
3 0

Answer:

  • $ 9.91

Explanation:

The amount that Frank paid on his last credit card bill shows how piecewise functions work.

Taking into account that:

  • 1.5 percent = 1.5/100 = 0.015,
  • 1 percent = 1 / 100 = 0.01, and
  • 0.015 × 500 = 7.50,

You can model the amount paid using the piecewise function p(x):

  • p(x)=\left \{ {{0.015x;x\leq500 } \atop {\\}{7.50+0.01(x-500);x>500}} \right.

Thus, your calculation is:

  • x = $741.23

  • p(x) = $7.50 + $ 0.01 × (741.23 - 500) = $ 9.91
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