13.42 dollars EACH if all the tickets cost the same
I got 10! [_-_]-{-_-}-(_-_)
Answer:
Mia and her family went to dinner, and the bill, including tax, came to $54.65. Mia suggested giving the server a gratuity of about 20 percent of the bill.
If they give a gratuity of 20 percent, what would be the tip rounded to the nearest dollar?
✔ $11
If they give a gratuity of 20 percent, rounded to the nearest dollar, what is the total cost of the dinner, including the tip?
✔ $65.65
Step-by-step explanation:
Answer:
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Step-by-step explanation:
<u>You</u><u> </u><u>can</u><u> </u><u>buy</u><u> </u><u>online</u><u>.</u><u>.</u><u> </u>
<u>Go</u><u> </u><u>and</u><u> </u><u>check</u><u> </u><u>on</u><u> </u><u>go</u><u> </u><u>gle</u>
Consider the attached figure. If AB has length 1, then BC has length sin(15°) and CD (the altitude of triangle ABC) has length sin(15°)·cos(15°).
By the double angle formula for sin(α), ...
... sin(2α) = 2sin(α)cos(α)
Rearranging, this gives
... sin(α)·cos(α) = sin(2α)/2
We have
... CD = sin(15°)·cos(15°) = sin(2·15°)/2
... CD = sin(30°)/2 = (1/2)/2 = 1/4
That is, the altitude, CD, is 1/4 the hypotenuse, AB, of triangle ABC.
