Find the value of y that makes the equation y= 1/2x- 2 true when x=4 A. -4
1 answer:
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Answer:
The final price is $66.
Step-by-step explanation:
This question can be solved by a rule of three.
The initial price was of $120.
Initially, there was a discount of 15%. Then, there is another discount on the initial price. So the total discount is of 15+30 = 45%.
So the final price will be 100-45 = 55% = 0.55 of the initial price.
So
$120 - 1
x - 0.55
The final price is $66.
1.
Answer D.
2.
From secant theorem, we know, that:
and from picture:
So we can calculate:
Answer D.
2.
From secant theorem, we know, that:
and from picture:
So we can calculate: