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dsp73
2 years ago
5

Check

Mathematics
1 answer:
sergejj [24]2 years ago
5 0

Answer:

assalam o aalaikum

Step-by-step explanation:

I finished my homework this morning. __________________,

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What percent of 60 is 21?
IrinaVladis [17]

Answer:

the answer is 35 percent

6 0
3 years ago
Kevin operates a movie theater that sells about 800 tickets per day for $8 each. Kevin predicts that for each $0.50 increase in
dmitriy555 [2]

Answer:

The function reveals that the maximum earning from ticket sales will be $6480 after 2 ($0.50) price increases

Step-by-step explanation:

* Lets explain how to solve the problem

- The function f(x) = -20x² + 80x + 6400 represents the total

 earnings from ticket sales and x represents the number of $0.50

 price increases

∵ f(x) is a quadratic function

∵ The coefficient of x² is -20

∴ The function has a maximum value

- The vertex of the quadratic function f(x) = ax² + bx + c is (h , k),

 where h = -b/2a and k = f(h)

* Lets find the maximum point of f(x)

∵ a = -20 , b = 80

∵ h = -b/2a

∴ h = -(80)/2(-20) = -80/-40 = 2

∵ k = f(h) and h = 2

∴ f(2) = -20(2)² + 80 (2) + 6400

∴ f(2) = -80 + 160 + 6400

∴ f(2) = 6480

∴ k = 6480

* The function reveals that the maximum earning from ticket sales

  will be $6480 after 2 ($0.50) price increases

3 0
2 years ago
Eight values have a mean of 7. a ninth value is added. the new mean is 9. what is the new value
My name is Ann [436]

Answer:

25 because the 8 values must times with 7 and will get 56. when the ninth value added , let the ninth value as y , 56+y , the new mean is 9 . so it will be like this , 56+y over 9 times with 9

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Byron has his own bakery. He bakes 84 cakes each week. How many can he make in one day?
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Answer: 12 cakes

Step-by-step explanation:

8 0
2 years ago
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If 9/10 of cats prefer felix food of the total 500 surveyed,how many do NOT prefer felix
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Answer:

450 cats do NOT prefer felix

Step-by-step explanation:

9/10= x/500

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2 years ago
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