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faltersainse [42]
3 years ago
7

James wants to build a frame around a circular clock like the one shown. He is trying to determine how much material he needs to

wrap around the clock. Determine the circumference if the radius is 12 inches. Round your answer to the nearest tenths. Use ≈3.14.
Mathematics
1 answer:
stealth61 [152]3 years ago
4 0

Answer:

22

Step-by-step explanation:

Just did it

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A sports stadium has 10000 seats, divided into box seats, lower-deck seats, and upper-devk seats. Box seats sell for 10 dollars,
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Answer:

Number of box seats = 1000

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Step-by-step explanation:

Let number of box seats = x

Let number of lower deck seats = y

Let number of upper deck seats = z

As per question statement:

x+y+z=10000 ...... (1)

Cost for box seat = $10

Cost for x box seats = 10x

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Cost for y lower deck seats = 8y

Cost for lower deck seat = $5

Cost for z lower deck seats = 5z

As per question statement:

10x+8y+5z=70000 ..... (2)

z = 4x ..... (3)

Putting value of y in (1) and (2):

x+y+4x=10000\\\Rightarrow 5x+y=10000 ....... (4)

10x+8 y+5\times 4x=70000\\\Rightarrow 30x+8y=70000 ..... (5)

8 \times (4) - (5):

10x =10000

\Rightarrow x = 1000

By (3):

z = 4000

Now, by equation (1):

y = 5000

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Number of upper deck seats = 4000

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