4 years ago

If a printer prints 28 copies in 1 minute how many would it print in 3 minutes and 45 seconds?

Mathematics

1 answer:

Wittaler [7]4 years ago

3 0

3minutes 45 seconds = 3 45/60 = 3.75 minutes

28 copies/ 1 minute = x copies/3.75 minutes

using cross products

28 * 3.75 = 1 * x

105 = x

We can print 105 copies in 3 3/4 minutes

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Explain the difference between the opposite of a number and the absolute value of a number

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Opposite number is like 8 and -8. And absolute value is like -8 and 8 or 9 and 9. The absolute value is always positive.

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Sandy had an aquarium shaped like a rectangular prism that has a length of 24 inches, a width of 18 inches and a height of 26 in

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Answer:

11232 in³

Step-by-step explanation:

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xz_007 [3.2K]

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Answer:

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8 0

3 years ago

(1/x-4)• (-x^2+9x-20/x+2)<br> (Multiplying And Dividing Rational Expressions)

IRISSAK [1]

ANSWER

$\frac{5 - x}{x + 2}$

EXPLANATION

We want to simplify the rational expression:

$( \frac{1}{x - 4)} )( \frac{ - {x}^{2} + 9x - 20}{x + 2} )$

We split the middle term to obtain:

$( \frac{1}{x - 4)} )( \frac{ - {x}^{2} + 5x + 4x- 20}{x + 2} )$

We now factor to obtain;

$( \frac{1}{x - 4)} )( \frac{-x(x - 5) + 4(x - 5)}{x + 2} )$

$( \frac{1}{x - 4)} )( \frac{(x - 5)(4 - x)}{x + 2} )$

$( \frac{1}{x - 4)} ) ( \frac{ - (x - 5)(x - 4)}{x + 2} )$

We cancel the common factors to get;

$\frac{ - (x - 5)}{x + 2}$

$= \frac{5 - x}{x + 2}$

7 0

3 years ago