Solve this equation: 8(3x – 6) = 6(4x + 8)
1 answer:
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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):
Thus, your calculation is:
- x = $741.23
- p(x) = $7.50 + $ 0.01 × (741.23 - 500) = $ 9.91
Since triangles ABC and BCD are similar, we can establish a proportion between the lengths of corresponding sides:
We can infer from our picture that
. Also we can find the length of AC by adding AD and CD:
Lets replace the values in our proportion:
Solving for
:
We can conclude that the correct answer is: D
We can infer from our picture that
Lets replace the values in our proportion:
Solving for
We can conclude that the correct answer is: D