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Irina18 [472]
3 years ago
7

WILL MARK BRAINLIEST!!!!

Mathematics
1 answer:
Kitty [74]3 years ago
3 0

Answer:

20\pi

Step-by-step explanation:

Let the radius of the disk be r centimeters. Since the area of the disk is 100pi sq cm, we have \pi r^2=100\pi, and since r is positive, r=10. The circumference of a circle is 2\pi r, which, in this case, is \boxed{20\pi}.

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Complete the following statement.<br><br> 20% of $55 = $____
Eva8 [605]

Answer:

$11

Step-by-step explanation:

Let's take 20% and convert it into a decimal, which is .20. Multiply that percentage by $55 (.20 * 55) and you get $11, which is the answer.

3 0
2 years ago
The manager at a concert venue keeps track of the number of adult tickets and student tickets sold each day and the total money
poizon [28]

Answer: the number of adult and student tickets sold are (45, 29)

Step-by-step explanation:

Let x represent the number of adult tickets that were sold.

Let y represent the number of student tickets that were sold.

On Wednesday, a total of 74 tickets were sold. This means that

x + y = 74

x = 74 - y- - - - - - - - - - - - - - 1

If adult tickets are sold for $15 and student tickets are sold for $11 and the money collected was $994, it means that

15x + 11y = 994- - - - - - - - - - - - - - 2

Substituting equation 1 into equation 2, it becomes

15(74 - y) + 11y = 994

1110 - 15y + 11y = 994

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- 4y = - 116

y = - 116/ - 4

y = 29

Substituting y = 29 into equation 1, it becomes

x = 74 - 29 = 45

6 0
3 years ago
Write an inequality to represent the situation the temperature stays above –15°
lozanna [386]
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6 0
3 years ago
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KIM [24]

Answer:

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Step-by-step explanation:

5 0
3 years ago
What is the solution to this equation?
Nesterboy [21]

Answer:

21

Step-by-step explanation:

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8 0
3 years ago
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