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3 years ago

Dan rolls a fair dice 24 times. How many times would Dan expect to roll a number greater than 1?

Mathematics

2 answers:

kotegsom [21]3 years ago

6 0

Answer:

Step-by-step explanation:

so the odds of rolling a number greater than 1 is 5/6.

now multiply 5/6 into 24 and you get the answer that is 20

lorasvet [3.4K]3 years ago

6 0

Answer: 20

Explanation:

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Which set of lengths are the side lengths of a right triangle? (9,15,17) (14,23,25) (20,30,40) (15,36,39)

goldfiish [28.3K]

Answer:

(15, 36, 39)

Step-by-step explanation:

Using pythagoreas formula: A^2 * B^2 = C^2

so a=15, b=36, c=39

15^2+36^2=39^2

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3 years ago

Select all the numbers that are common multiples of 4 and 6.

Verdich [7]

Answer:

12, 24, and 60.

Step-by-step explanation:

It says multiples. Not factors, so it can't be 1 or 2. Neither of the numbers can make the number 10. 4 can make 40, but 6 can't.

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3 years ago

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How much pure acid should be mixed with 55 gallons of a 60%acid solution in order to get an 80% acid solution?

horsena [70]

Work in amount of pure acid let x = gallons of pure acid required.
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3 years ago

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3 years ago

What is<br> |Ay|<br> in the system of linear equations below?<br><br> -8x+y=-6<br> 3x-2y=-1

Anna71 [15]

Considering the given system of equations, it is found that:

$|Ay| = \left|\begin{array}{cc}-8&1\\-6&-1\end{array}\right|$

<h3>What is a system of equations?</h3>

A system of equations is when two or more variables are related, and equations are built to find the values of each variable.

In this problem, the system is:

-8x+y=-6

3x-2y=-1

In matrix form, it is given by:

$\left[\begin{array}{cc}-8&1\\3&-2\end{array}\right]\left[\begin{array}{c}x\\y\end{array}\right] = \left[\begin{array}{c}-6\\-1\end{array}\right]$

To find the matrix |Ay|, we replace the y coefficients of 1 and -2 by the results of -6 and -1, hence:

$|Ay| = \left|\begin{array}{cc}-8&1\\-6&-1\end{array}\right|$

More can be learned about a system of equations at brainly.com/question/24342899

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2 years ago