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3 years ago

The cost of manufacturing a printer is $35. The

Mathematics

1 answer:

Gelneren [198K]3 years ago

5 0

Answer:

$47.25

Step-by-step explanation:

First, we find how much the markup costs:

35%=35/100

So we do,

35/100x$35 = $12.25

To find the total price of everything, we have to add the price markup AND the original cost of the printer.

So we do, 35 + 12.25 = $47.25

I hope this helps!:)

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She would have 6 or 7 lessons 130 divided by 20 = 6.5

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4 years ago

Can someone help me out with my math homework my grades are ba

kupik [55]

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==========================================================

Explanation:

2 cm on paper (or on screen) represents 3 meters in real life.

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The longer dimension is 6 meters. We can think of it like this

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3 years ago

Solve the equation.<br> -7= z/3

Mariana [72]

Step-by-step explanation:

$- 7 = \frac{z}{3} \\ by \: cross \: multiplication \\ z = - 7 \times 3 \\ z = - 21$

7 0

3 years ago

Read 2 more answers

How do you figure this out? I am having a hard time. The variables x and y are related to proportionally. When x = 8, y = 20. Fi

kvv77 [185]

Answer:

200

Step-by-step explanation:

(80×20)/8

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5 0

3 years ago

Find and simplify each of the following for

WINSTONCH [101]

Answer:

(A) f(x + h) = 4x² + 8xh + 4h² - 6x - 6h + 6

(B) f(x + h) - f(x) = 8xh + 4h² - 6h

Step-by-step explanation:

* Lets explain how to solve the problem

- The function f(x) = 4x² - 6x + 6

- To find f(x + h) substitute x in the function by (x + h)

∵ f(x) = 4x² - 6x + 6

∴ f(x + h) = 4(x + h)² - 6(x + h) + 6

- Lets simplify 4(x + h)²

∵ (x + h)² = (x)(x) + 2(x)(h) + (h)(h) = x² + 2xh + h²

∴ 4(x + h)² = 4(x² + 2xh + h²) = 4x² + 8xh + 4h²

- Lets simplify 6(x + h)

∵ 6(x + h) = 6(x) + 6(h)

∴ 6(x + h) = 6x + 6h

∴ f(x + h) = 4x² + 8xh + 4h² - (6x + 6h) + 6

- Remember (-)(+) = (-)

∴ f(x + h) = 4x² + 8xh + 4h² - 6x - 6h + 6

* (A) f(x + h) = 4x² + 8xh + 4h² - 6x - 6h + 6

- Lets find f(x + h) - f(x)

∵ f(x + h) = 4x² + 8xh + 4h² - 6x - 6h + 6

∵ f(x) = 4x² - 6x + 6

∴ f(x + h) - f(x) = 4x² + 8xh + 4h² - 6x - 6h + 6 - (4x² - 6x + 6)

- Remember (-)(-) = (+)

∴ f(x + h) - f(x) = 4x² + 8xh + 4h² - 6x - 6h + 6 - 4x² + 6x - 6

- Simplify by adding the like terms

∴ f(x + h) - f(x) = (4x² - 4x²) + 8xh + 4h² + (- 6x + 6x) - 6h + (6 - 6)

∴ f(x + h) - f(x) = 8xh + 4h² - 6h

* (B) f(x + h) - f(x) = 8xh + 4h² - 6h

- Lets find $\frac{f(x+h)-f(x)}{h}$

∵ f(x + h) - f(x) = 8xh + 4h² - 6h

∴ $\frac{f(x+h)-f(x)}{h}=\frac{8xh + 4h^{2}-6h}{h}$

- Simplify by separate the three terms

∴ $\frac{f(x+h)-f(x)}{h}=\frac{8xh}{h}+\frac{4h^{2} }{h}-\frac{6h}{h}$

∴ $\frac{f(x+h)-f(x)}{h}=8x+4h-6$

* (C) $\frac{f(x+h)-f(x)}{h}=8x+4h-6$

4 0

3 years ago