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Lines AB and CD are straight lines. Find x and y. Give reasons to justify your solutions.

Lines AB and CD are straight lines. Find x and y. Give reasons to justify your solutions-example-1

2 Answers

5 votes

Answer:

Explanation:

x=14

User Axort
by
5.2k points
4 votes

Answer:

x= 14

y=5

Explanation:

AOC and BOD are vertical angles so they are equal

AOC = BOD = 25

MOD = 90

MOD = MOB+ BOD

90 = 3x+23 + 25

Combine like terms

90 = 3x +48

Subtract 48 from each side

90-48 = 3x

42 = 3x

Divide by 3

42/3 = 3x/3

14 =x

We know that 5y+ 3x +23+90 = 180 since AB is a straight line

5y+ 3x +113 = 180

subtract 113 from each side

5y+3x =67

5y+ 3*14 =67

5y +42 = 67

5y = 67-42

5y = 25

Divide by 5

y = 25/5

y =5

User Yago Riveiro
by
4.4k points