Matt paid $55 at a restaurant. That amount included a 10% tip. What was the check amount before the tip?
2 answers:
Total amount paid by Matt at restaurant was 55 dollars. It included a service tip of 10% on check amount.
Total bill is given by sum of check amount and tip amount (if any).
Total Bill = Check amount + Tip amount.
55 dollars = Check amount + 10% of check amount.
55 dollars = 110% of check amount.
55 dollars = 1.10 x check amount.
Check amount =
Hence, option D is correct, i.e. 50 dollars.
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Volume:
A composite figure is formed by two or more basic figures or shapes. In this problem, we have a composite figure formed by a cylinder and a hemisphere as shown in the figure below, so the volume of this shape as a whole is the sum of the volume of the cylinder and the hemisphere:
So:
From the figure the radius of the hemisphere is the same radius of the cylinder and equals:
And the height of the cylinder is:
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The volume of a hemisphere is half the volume of a sphere, hence:
Finally, the volume of the composite figure is:
Volume of cone: brainly.com/question/4383003
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