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andrew11 [14]
3 years ago
12

1+1=2 1+1=11 1+1=window

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
4 0
1+1= 5 yet my teacher says it’s 2

2+2 also equals 5
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Solve <br> y= -2x + 9<br><br> y= 4x -3
wlad13 [49]

y = -2x + 9

y = 4x - 3

y is isolated in both equations, thus you may set the expressions (-2x + 9) and (4x - 3) equal to each other and solve for x.

-2x + 9 = 4x - 3

Subtract 9 from both sides.

-2x + 9 - 9 = 4x - 3 - 9

-2x = 4x - 12

Subtract 4x from both sides.

-2x - 4x = 4x - 12 - 4x

-6x = -12

Divide both sides by -6.

-6x/-6 = -12/-6

x = 2

Substitute 2 for x into one of the original equations to find y.

y = 4x - 3 (given)

y = 4(2) - 3 (substitute)

y = 8 - 3 (multiply)

y = 5 (subtract)

Plug x- and y-values into original equations to check work.

5 = -2(2) + 9

5 = - 4 + 9

5 = 5


5 = 4(2) - 3

5 = 8 - 3

5 = 5

Answer:

x = 2 and y = 5; (2, 5).

5 0
3 years ago
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Simplify (7x) - (-2x)​
Valentin [98]

Just try Google or calculator millions of sites simplify it

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3 years ago
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Quincy found 120 shells during four days at the beach. if quincy found the same number of shells each day, how many shells did h
Svetach [21]
If Quincy finds 120 shells in 4 days, we can use the equation 4x = 120 to find how many shells she found each day. 4x = 120 If we divide both sides by four we get x = 30 So Quincy found 30 shells each day.
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3 years ago
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2x ≤ 12<br> Select the appropriate response<br> A2x ≤ 12 <br> B)x≤4 <br> C)x≤6<br> D)x ≤ 10
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Answer:

c x ≤ 6

Step-by-step explanation:

2x ≤ 12

Divide each side by 2

2x/2 ≤ 12/2

x ≤ 6

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3 years ago
Below is a set of data about temperatures. The range of a set of data is the distance between the lowest and highest value in th
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I get 27 degrees C!!!!!!!!!!
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