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Lana71 [14]
2 years ago
8

Help will mark as brainliest

Mathematics
2 answers:
viktelen [127]2 years ago
7 0
X=20
180-31-90
61=3x-1
60=3x
elena-s [515]2 years ago
3 0
#3
90+31= 121

180-121=59

the angle must equal 59 so plug that in:

3x-1=59
59+1=60
60/3= 20

x=20


#6

94 is supplementary to our blank angle making our blank angle 86

86+60=146

180-146=34

34/2=17

x=17

Hope this helps!
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Answer:

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Step-by-step explanation:

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Fed [463]

Answer:

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6 0
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on an airplane,there are two seats on the left side in each row and three seats on the right side.There are 90 seats on the righ
pantera1 [17]
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4 0
3 years ago
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