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babymother [125]
3 years ago
12

Algebra applications ​

Mathematics
2 answers:
astra-53 [7]3 years ago
5 0

Answer:

x = 55\\y = 30\\

Step-by-step explanation:

<u><em>Finding x:</em></u>

4x - 100 + x + 5 = 180 <em>(Angles on a straight line)</em>

5x - 95 = 180

5x = 180 + 95

5x = 275

<em>Dividing both sides by 5</em>

x = 55

<em><u>Finding y:</u></em>

2y + 3y +30 = 180 <em>(Angles on a straight line)</em>

5y = 180-30

5y = 150

<em>Dividing both sides by 5</em>

y = 30

goblinko [34]3 years ago
3 0

Answer:

X=55°

Y=30°

Step-by-step explanation:

2y=x+5

Y=1/2x+2.5

3y+30=4x-100

3(0.5x+2.5)+30=4x-100

1.5x+7.5+30=4x-100

4x-1.5x=137.5

2.5x=137.5

X=55°

Y=30°

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