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otez555 [7]
2 years ago
14

What is the answer ? ....​

Mathematics
1 answer:
Alexxandr [17]2 years ago
7 0

Answer:

9.) A

10.) B

Step-by-step explanation:

please mark as brainliest

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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,
lesantik [10]

Answer:

Number of box seats = 1000

Number of lower deck seats = 5000

Number of upper deck seats = 4000

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

Cost for lower deck seat = $8

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

Number of box seats = 1000

Number of lower deck seats = 5000

Number of upper deck seats = 4000

6 0
3 years ago
Of the 520 students participating in a chess tournament, 35% were male. How many females were in the tournament?
elena55 [62]

Answer:

182

Step-by-step explanation:

take 520 and multiply by 0.35

8 0
3 years ago
Read 2 more answers
Oliver lives in a state with no state income tax. He pays $150 in payroll tax each week. If the federal income tax is 0.75 of th
shepuryov [24]
The other taxes amount to $37.5.
6 0
3 years ago
If there are 91 chickens and 1 is gone how many more is there left.
beks73 [17]

Answer:

90 chickens

Step-by-step explanation:

91 chickens are there, subtract 1 chicken there 90 left

91 - 1 = 90

Mark brainliest would be appreciated

7 0
2 years ago
Read 2 more answers
Dr. Clarence invested $5000 in an account that draws 3.2% interest, compounded annually. What is the total value of the account
DanielleElmas [232]
Given that the amount invested was compounded annually, the total value of the investment after 5 years will be:
FV=P(1+r/100)^n
where:
FV=future value
p=principle
r=rate
n=time
hence
FV=5000(1+3.2/100)^5
FV=$5,852.865
3 0
3 years ago
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