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elena-14-01-66 [18.8K]
4 years ago
10

Pentagon is a pentagonal-shaped building near Washington, DC, that is home to the United States Department of Defense. Write a f

ormula for the perimeter of a regular pentagon in terms of the length of a side. Evaluate the formula to find the perimeter of the Pentagon, which has a side length of 921 ft.
Mathematics
1 answer:
Margarita [4]4 years ago
7 0
5l. 

5(921) = 4605
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A movie theater sells adult tickets for $6 each. Senior citizens receive a discount of $3. One evening the theater sold 400 tick
Andrej [43]

Answer:

Number of senior citizen tickets sold= 110

Number of adults tickets sold= 290

Step-by-step explanation:

<u>First, we need to establish a system of equations:</u>

x= number of adults tickets

y= number of senior citizen tickets

x + y= 400

6x + 3y= 2,070

<u>Now, we isolate x in one equation and substitute the value in the other:</u>

x= 400 - y

6*(400 - y) + 3y = 2,070

2,400 - 6y + 3y = 2,070

330 = 3y

110 = y

Number of senior citizen tickets sold= 110

Number of adults tickets sold= 290

<u>Prove:</u>

290 + 110= 400

6*290 + 3*110= 2,070

6 0
3 years ago
The front face of Josh’s roof is shaped like a triangle. It has a base of 100 feet and a height of 15 feet. What is the area of
sweet-ann [11.9K]

Answer:

750 square feet

Step-by-step explanation:

The area of a triangle is 1/2bh

Now, we can plug our values in.

1/2(100)(15)

Simplify

50(15)

750

7 0
3 years ago
Ollie Drank 3/4 of a 16 oz bottle of juice. How many oz of juice is left in the bottle?
Alenkinab [10]
3/4th of the bottle of juice would be splitting up the 16 oz bottle into 4th, so 16 divided by 4 equals 4. Then because he only drank 3/4th of the bottle multiply the 4 by 3 equaling 12. Then subtract 12 from 16 and you get a total of 4 oz left!!!
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3 years ago
Charles is 23 years older than Gloria. In 14 years he will be twice her age. How old are they now?
kirza4 [7]

Answer:

44?.. im going to get rhis one wrong

7 0
3 years ago
Xy-2x=3y. Solve for x
Llana [10]

xy - 2x = 3y \\ x(y - 2) = 3y \\ x =  \frac{3y}{y - 2}
5 0
4 years ago
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