X+5

A jazz band sells 31 large boxes of fruit and 74 small box s of fruit for a fundraiser use distributive property to write and si

Naddik [55]

A jazz band sells 31 large boxes of fruit and 74 small boxes of fruit for a fundraiser.

a. Write and simplify an equation using distributive property to find the profit.

b. A large box of fruit costs $9 and a small box of fruit costs $4. What is the Jazz's band profit?

Profit = Price - Cost
Large Fruit Box:
Price $20
Cost $x
Small Fruit Box
Price $10
Cost $y

7 0

4 years ago

What is the minimum thickness of a nonreflecting film coating (n = 1.30) on a glass lens (n = 1.50) for wavelength 500 nm?

Burka [1]

The thickness of the non-reflective coating layer is 9.62 x 10¯⁸ m or 96.2 nm.

From the question we know that :

n = 1.30

λ = 500nm = 5 x 10¯⁷m

The non-reflective coating system is applied on glass and the refractive index of that system should be nair < ncoating < nglass. The light travels across the air and is refracted by coating film and then refracted again by the glass. For preventing the light got reflected by glass, the thickness of the layer should obey this equation :

2nt = λ/2

t is the thickness of the layer, λ is the wavelength and n is the refractive index of the film.

By substituting the following equation we get

2nt = λ/2

t = 1/4 . ( λ / n )

t = 1/4 . ( 5 x 10¯⁷ / 1.3)

t = 9.62 x 10¯⁸ m

Hence, the thickness of the non-reflective coating layer is 9.62 x 10¯⁸ m or 96.2 nm.

Find out more on non-reflective coating at: brainly.com/question/17205515

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8 0

2 years ago