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AleksAgata [21]
3 years ago
14

Can someone help me with this? Thanks a bunch! ;)

Mathematics
1 answer:
dexar [7]3 years ago
5 0

Answer:

idk, can I?

Step-by-step explanation:

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Simplify 2x + 5x + 4x
Drupady [299]

Answer:

11x

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Forget about the x until the end and add the numbers together.

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Triangles and algebra
Elanso [62]

Hello from MrBillDoesMath!

Answer:

x = 10


Discussion:

A plane triangle contains 180 degrees. Adding the angles in the triangle shown in  #8 gives

(4x + 7) + (3x + 13) + 90 = 180


Note the "right angle" shown in the triangle has been replaced by its 90 degree equivalent in the above equation.

Combining like terms gives


( 4x + 3x) + (7 + 13) + 90 = 180

7x + 20 + 90 = 180 =>                      (subtract 90 from each side)

7x + 20 + 90 - 90 = 180 - 90 = 90  =>

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7x + 20 -20 = 90 -20 =>

7x = 70 =>

x 70/7 =10.



Thank you,

MrB

3 0
3 years ago
How many thousands equal 90 hundreds
Irina18 [472]
<span>90 hundreds = 90 x 100 = 9000 Number of thousands in 9000 = 9000/1000 = 9</span>
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