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iVinArrow [24]
2 years ago
7

Simplify the expression 3.2 - 5.6n - 4n + 8 =

Mathematics
2 answers:
mars1129 [50]2 years ago
5 0

Answer:

maybe 11.2-9.6n...sorry if I get it wrong

Step-by-step explanation:

BigorU [14]2 years ago
3 0

Answer

11.2-9.6

Step-by-step explanation:

-5.6n-4n+3.2+8

11.2-9.6n

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Expand and simplify (5x+2)(2x-3)
Snowcat [4.5K]

Answer:

10x^2 - 11x - 6

Step-by-step explanation:

(5x+2)(2x-3)

= 10x^2 - 15x + 4x - 6

= 10x^2 - 11x - 6

3 0
2 years ago
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3x - 2y + 3z = -20<br> 4x - 3y - 2z = 7<br> -5x + 5y + z = 9
skelet666 [1.2K]

Answer:

x= 4 y= 7 z= -6

Step-by-step explanation:

solve for one and you get them all

First, I got rid of the z by multiplying common factors (multiplied z by 2) and added equations 2 and 3 together after multiplying by 2

4x - 3y - 2z = 7

-10x+10y+2z= 18

-6x+7y= 25

Then multiplied z by -3 (to get rid of the z) with the original equation 3

3x - 2y + 3z = -20

15x-15y-3z= -27

18x-17y= -47

Next find common thing between the 2 equations we got and multiply it by that and combine (we can multiply first equation by 3 to get rid of the x and solve for y)

-18x+21y= 75

18x-17y= -47

y=7

Work backwards, substitute 7 into the above equation, you get x= 4 and then same for z to get z= -6

8 0
2 years ago
A home has a room with length 22 feet and width 25 ft.
Elena L [17]

Answer:

O length = 11 inches width = 12.5 inches

Step-by-step explanation:

8 0
2 years ago
10
MA_775_DIABLO [31]

Answer:

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Step-by-step explanation:

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7 0
2 years ago
Your job pays you $10.75/hr. and last week you worked 48 hrs. Your gross pay is $​
dimaraw [331]

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Step-by-step explanation:

Just multiply 48x10.75

8 0
2 years ago
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