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notka56 [123]
3 years ago
6

Adelle and her family order a meal that cost $30. Adelle paid 10% sales tax and left a 20% tip on $30. What was the total cost

Mathematics
1 answer:
Svetach [21]3 years ago
7 0
The total cost is 39$
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A triangle is placed in a semicircle with a radius of 9ft, as shown below. Find the area of the shaded region.
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The height is given as 9 ft. this is also the radius of the circle.

The base of the triangle would be 2 times the radius = 18 feet.

The area of the triangle is 1/2 x 9 x 18 = 81 square feet.

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Find the missing term<br> (a^4+9a^3-10a^2)+(8a^4+__+a)=9a^4+15a^3-10a^2=a
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Answer:

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