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timofeeve [1]
3 years ago
5

Pls help me! I really don’t understand this

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
6 0
5x-5=4x+10
x=15
75-5=70
180-70=110
6y-4=110
6y=114
y=19
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koban [17]
First, let's review what the "factorial operator"  !   means.

5! = 5*4*3*2*1.

3! = 3*2*1

7! = 7*6*5*4*3*2*1

Then:  

 7!         7*6*5*4*3*2*1       7*6*5*4         5040
----- = ----------------------- = ------------- = ----------- = 5040 (answer) 
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3 years ago
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castortr0y [4]

Answer:

x = 6

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Step-by-step explanation:

Let the two numbers be x and y

<u><em>Condition 1:</em></u>

7x+3y = 54 -----------(1)

<u><em>Condition 2:</em></u>

x = 2+y -----------------(2)

<em>Putting (2) in (1)</em>

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=> 7y+14+3y = 54

=> 10y = 54-14

=> 10y = 40

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6 0
3 years ago
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alexira [117]

Answer:(6,-2)

Step-by-step explanation:

M is the midpoint of AB then ,

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10=x+4  ,      -4=y-2

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so, B= (6,-2)

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telo118 [61]
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Westkost [7]

Answer:

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