Maria types a 5 page paper in 40 minutes. At this rate, how many pages will she type in 136 minutes?

Mathematics

1 answer:

kvv77 [185]3 years ago

8 0

In this equation, X = 17

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r-ruslan [8.4K]

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3 years ago

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Serjik [45]

F(8)= 8^0+8^2/3+8^-2/3
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3 years ago

2y⁴-18x²y²-48xy²-32y²<br><br>

Goryan [66]

Answer:

Step-by-step explanation:

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2 years ago

55. If 3x = 4y, the value of (x + y)^2 : (x - y)^2 is:<br>

ladessa [460]

Answer:

$\large\boxed{(x+y)^2:(x-y)^2=49}$

Step-by-step explanation:

$3x=4y\qquad\text{subtract}\ 3y\ \text{from both sides}\\\\3x-3y=y\qquad\text{distributive}\\\\3(x-y)=y\qquad\text{divide both sides by 3}\\\\x-y=\dfrac{y}{3}\qquad(*)\\------------------\\3x=4y\qquad\text{add}\ 3y\ \text{to both sides}\\\\3x+3y=7y\qquad\text{distributive}\\\\3(x+y)=7y\qquad\text{divide both sides by 3}\\\\x+y=\dfrac{7y}{3}\qquad(**)\\------------------$

$(x+y)^2:(x-y)^2=\dfrac{(x+y)^2}{(x-y)^2}\qquad\text{use}\ \left(\dfrac{a}{b}\right)^n=\dfrac{a^n}{b^n}\\\\=\left(\dfrac{x+y}{x-y}\right)^2\qquad\text{substitute}\ (*)\ \text{and}\ (**)\\\\=\left(\dfrac{\frac{7y}{3}}{\frac{y}{3}}\right)^2=\left(\dfrac{7y}{3}\cdot\dfrac{3}{y}\right)^2\qquad\text{cancel}\ 3\ \text{and}\ y\\\\=(7)^2=49$

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2 years ago

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Masteriza [31]

Answer:

Step-by-step explanation:

2 because it is the middle one and to do the median you have to put the numbers in order so for example, smallest to biggest vice versa and then cross the numbers from each side until you find the middle and if there is one then that is the median and if there is two then you add them together and then divide by 2.

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2 years ago