I hope this helps you
right angle 90
5/4.90
450/4
112,5
Answer:
x=70
y= 30
z= 10
Step-by-step explanation:
X + 110 = 180 since they form a straight line
Subtract 110 from each side
x+110 -100 = 180-110
x = 70
Y + 110 + 40 = 180 since the three angles of a triangle add to 180
y+150 = 180
Subtract 150 from each side
y+150-150 = 180-150
y = 30
A + B+ C = 180 since the three angles of a triangle add to 180
90 + y+z+ 40 =180
90 + 30+z + 40=180
Combine like terms
170 +z = 180
z = 180-170
z = 10
I'll do the first two to get you started
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Problem 1
A = 3 = starting value
B = 10 = ending value
C = percent change
C = [ (B - A)/A ] * 100%
C = [ (10-3)/3 ] * 100%
C = (7/3) * 100%
C = 2.3333333 * 100%
C = 233.33333%
C = 233.3%
The positive C value means we have a percent increase. If C was negative, then we'd have a percent decrease.
<h3>Answer: 233.3% increase</h3>
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Problem 2
A = 9 = start value
B = 20 = end value
C = percent change
C = [ (B - A)/A ] * 100%
C = [ (20-9)/9 ] * 100%
C = (11/9)*100%
C = 1.2222222222*100%
C = 122.22222222%
C = 122.2%
<h3>Answer: 122.2% increase</h3>