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sleet_krkn [62]
1 year ago
14

A stadium has 51,000 seats. Seats sell for $28 in Section A, $16 in Section B, and $12 in Section C. The number of seats in Sect

ion A equals the total number of seats in sections B and C. Suppose the stadium takes in $1,078,400 from each sold-out event. How many seats does each section hold?
Mathematics
1 answer:
Gre4nikov [31]1 year ago
4 0

Answer:

A: 25,500

B: 14,600

C: 10,900

Step-by-step explanation:

This is what we know:

a = b + c

a + b + c = 51,000       Substitute in a for b + c

a + a = 51000  Combine like terms.

2a = 51000  Divide both sides by 2

a = 25,500

28a + 16b + 12c = 1078400   Substitute in 25.600 for a

28(25500) + 16b + 12c = 1078400

714000 + 16b + 12c = 1078400  Subtract 714000 from both sides

16b + 12 c = 364400

25500 +b + c = 51000  Subtract 25500 from both sides

b + c + = 25500    Multiply this equation all the way through by -12 and add it to the bold equation above it.

-12b -12c = -306000

<u>16b + 12c = 364400</u>

4b = 58400   divide both sides by 4

b = 14600

a + b + c = 51000  Plug in what we know

25500 + 14600 + c = 51000

40100 + c = 51000  Subtract 40100 from both sides

c = 10900

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