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3 years ago

Jose can read 7 pages of his book in 5 minutes. At this rate, how long will it take him to read the entire 175 page book?

2 answers:

5 0

125 minutes, or 2 hours and 5 minutes.

$\frac{5}7 = \frac{x}{175}$
cross multiply
5*175=7x
875=7x
$\frac{875}7=x$
125=x

LiRa [457]3 years ago

5 0

Set up a proportion pages/pages= minutes/ minutes
7/175=5/x
Note: x is the unkown variable or how long it will take him to read a 175 page book.
--Now do the math-- or cross multiply--
7(x)=175(5)
reduce it down
7(x)=875
divide both sides by 7 in order to get variable x alone
x=125
So it will take Jose 125 minutes to read the entire 175 page book.

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3 years ago

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Find the length of the missing side. triangle with an 8 inch side and 12 inch side with a right angle 8.9 in. 104 in. 4 in 14.4

Mamont248 [21]

Given:

In a triangle, length of one side is 8 inches and length of another side is 12 inches, and an angle is a right angle.

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The length of the missing side.

Solution:

In a right angle triangle,

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Substituting Perpendicular = 8 inches and Base = 12 inches, we get

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2 years ago

What fraction is the greatest in this row? 12/4, 4/4, 2 2 / 4, 1/4. also 2 2 /4 is a mixed number

kakasveta [241]

Answer:

12/4

Step-by-step explanation:

4/4 is 1

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2 2/4 is 2 1/2

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3 years ago

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If a → b is true, then ~a → b is also true.

Rasek [7]

Answer:

False

Step-by-step explanation:

To determine whether the statemaent "If $a\Rightarrow b$ is true, then $\neg a\Rightarrow b$ is also true" holds, you can form the truth table:

$\begin{array}{ccccc}a&b&a\Rightarrow b&\neg a&\neg a\Rightarrow b\\1&1&1&0&1\\1&0&0&0&1\\0&1&1&1&1\\0&0&1&1&0\end{array}$

When the result of the column $a\Rightarrow b$ takes value 1 (true), the result of the column $\neg a\Rightarrow b$ is not always 1, then the statement is false.

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3 years ago