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3 years ago

How many solutions does the following equation have? 5 (x -3) + 6 = 5x - 9

Mathematics

1 answer:

alexdok [17]3 years ago

8 0

Answer:

Infinite Solutions

Step-by-step explanation:

5(x-3)+6=5x-9

5x-15+6=5x-9

5x-9=5x-9

Add 9 to both sides

5x=5x

Divide by 5

x=x

Infinite solutions because any number put in will be right

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maw [93]

Answer:

C = 0.75(n/2)

Step-by-step explanation:

For each pair of signs, $0.75 is needed for the posterboard.

C = 0.75(n/2)

This can be simplified to ...

C = 0.375n . . . . for n an even number

If posterboard only comes in the size given, then the more technically correct answer is ...

C = 0.75·ceiling(n/2)

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3 years ago

What is 4/7, 3/7 , and5/7 put into least in greatest

Ksivusya [100]

5/7 4/7 and 3/7 in least to greatest

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Let Upper A equals left bracket Start 2 By 2 Matrix 1st Row 1st Column negative 2 2nd Column 4 2nd Row 1st Column 1 2nd Column 3

vagabundo [1.1K]

Answer:

not

Step-by-step explanation:

$\left[\begin{array}{ccc}-2&4\\1&3\end{array}\right] *\left[\begin{array}{ccc}-2&1\\3&7\end{array}\right]=$

First is A and Second is B

Let's find A*B

$\left[\begin{array}{ccc}-2(-2)+4*3&-2*1+4*7\\1(-2)+3*3&1*1+3*7\end{array}\right] =\left[\begin{array}{ccc}16&26\\7&22\end{array}\right]$

$\left[\begin{array}{ccc}-2&1\\3&7\end{array}\right] \left[\begin{array}{ccc}-2&4\\1&3\end{array}\right] =$

Now let's find B*A

$\left[\begin{array}{ccc}-2(-2)+1*1&-2*4+1*3\\3(-2)+7*1&3*4+7*3\end{array}\right] =\left[\begin{array}{ccc}5&-5\\1&23\end{array}\right]$

c) They are not

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2 years ago

2. Belinda sells furniture at the Fantasy Furniture

SpyIntel [72]

Answer:

$679.4

Step-by-step explanation:

commision: $249.4

earnings: $430

$249.4 + $430 = $679.4

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2 years ago