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I am Lyosha [343]
3 years ago
9

Months, x

Mathematics
1 answer:
Xelga [282]3 years ago
5 0
Gejensjebsjabakabansnnsnsnsnsbsbbsbd
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1. Sally said that when you add or subtract positive or negative decimals, you can change the order of the decimals and still ge
siniylev [52]
Always true because addition and subtraction is commutative
-6.2-(-3.96) = -2.24
-3.96-(-6.2)= -2.24
5.71+2.84=8.55
2.84+5.71=8.55  
Hope this helped :)
3 0
3 years ago
Which domain restrictions apply to the rational expression?
dimulka [17.4K]

1) it must be fulfilled that the denominator is different from zero, then for this expression

x^2 -9  ⇒ x^2-3^2 = (x-3)(x+3)⇒ (x-3)(x+3) = 0 ⇒ x = 3 o x = -3 , the dominium is all numbers reals except 3 and -3  

5 0
3 years ago
Please answer this math question !! thank u dears !! 20 points and brainliest !!
Romashka-Z-Leto [24]

Answer:

The student ticket is 200 and the adults is 550

Step-by-step explanation:

So the set up is :

750 = x + y

5300 = 8x + 4.5 y

x will be adults and y will be students

Assuming you don't have calculator then you want to be able to eliminate either x or y from this system. The easiest is X cause its a whole number.

So multiply all the numbers from the first equation by 8 which gives

6000 = 8x + 8 y

5300 = 8x + 4.5 y

Then subtract the numbers (6000-5300 and 8x-8x and 8y-4.5y)

which gives :

700 = 3.5y

Solve for y = 200

and plug 200 back into any equation to solve for X

750 = x + 200

x = 550

6 0
3 years ago
Please help, Pre-Algebra super easy math question
ivanzaharov [21]

Answer:

-16

Step-by-step explanation:

b) -x²;                   x = -4

-(-4)²

-(16)

-16

I hope this helps!

7 0
1 year ago
Read 2 more answers
What is the distance, in feet, that the box has to travel to move from point A to point C?
LUCKY_DIMON [66]
Could u attach a photo ?
6 0
3 years ago
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