Step-by-step explanation:
you have given wrong meaning of questions
Let x and y be the angles
X= 3•y-8
X+ y = 180
Substitute first relationship in second
3y-8+y=180
4y=180+8
Y =188/4= 47 degrees
X= 180-47=133 degrees
The measure of the large angle is
133 degrees
Answer:
39
Step-by-step explanation:
you need to work backwards
86-2-6=78
therefore, 78 = 2y
y = 2y/2, so 78/2 = 39
Answer:
31 weeks or 30 2/3
Step-by-step explanation:
485-25 = 460
460/15 = 30 2/3
Answer:
x = 
Step-by-step explanation:
The figures are similar, thus the ratios of corresponding sides are equal, that is
= 
( cross- multiply )
8x = 12 ( divide both sides by 8 )
x = 
= = 1.5
