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olasank [31]
3 years ago
14

Please help me out!!!!!.........

Mathematics
2 answers:
mr Goodwill [35]3 years ago
4 0

Answer:

x=50

Step-by-step explanation:

The total number of angles in a quadrilateral is 360.

<em>set the expressions you have as equal to 360</em>

(x+10)+3x+2x+x = 360

<em>collect the x terms together</em>

7X + 10 = 360

<em>subtract the 10 to get just "x"s on one side</em>

7X = 350

<em>divide by 7 to get X alone</em>

x = 50

sdas [7]3 years ago
3 0

Answer:

x = 50°

Step-by-step explanation:

Angles in a quadrilateral sum to 360°

From the angles given, we can set up an equation

( x + 10 ) + ( 3x ) + ( 2x ) + ( x ) = 360

Now we solve it

x + 10  + 3x  + 2x  +  x  = 360

(Add the like terms together)

7x + 10 = 360

( -10 from both sides)

7x = 350

( ÷ both sides by 7)

x = 50°

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