Question

can somebody please help with this

Answer 1

Answer:

x + 10 = 90-10 so x is 80

x+20 =90 -20=70

2x =2x

Answer 2

Answer:

The answer is 50

Step-by-step explanation:

The sum of the angles of a pentagon is 540

Then

$(2x + 10) +( x + 10) +( 2x) +(x + 20) + (x + 10) = 540 \\ 7x + 50 = 540 \\ 7x = 490 \\ x = 70 \\ when \: the \: biggest \: angle \: is \: (2x + 10) \\ 2x + 10 = 2 \times 70 + 10 = 150$

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