2 years ago

a store pays $11.31 for a coffee table. The stores marks up the price by 10%. what is the amount of mark up?

Mathematics

1 answer:

Vesnalui [34]2 years ago

4 0

Answer:

$1.13

Step-by-step explanation:

x/11.31 = 10/100 (cross multiply)

100x = 113.1 (divide by 100)

x = 1.131

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Step-by-step explanation:

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2 years ago

Determine the commutators of the operators a and a+,where a = (x + ip)/2 ^1/2 and a+ = (x - ip)/ 2 ^1/2

Vsevolod [243]

Answer:

Given that:

$a = (\frac{x+ip}{2})^{\frac{1}{2}}$ and $a+= (\frac{x-ip}{2})^{\frac{1}{2}}$

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First find:

$aa^+ = (\frac{x+ip}{2})^{\frac{1}{2}} (\frac{x-ip}{2})^{\frac{1}{2}}$

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Now;

$a^+a =(\frac{x-ip}{2})^{\frac{1}{2}} (\frac{x+ip}{2})^{\frac{1}{2}} = (\frac{(x)^2-(ip)^2}{4})^{\frac{1}{2}}$

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3 years ago

You want to see if your dog will respond when you open the front door. After many attempts, you found that the dog barked 75% of

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The dog barked 6 times

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2 years ago

A planet has a circular orbit around a star. It is a distance of 65,000,000 km from the centre of the star. It orbits at an aver

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

70/7= 10

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2 years ago

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