Parallel Line Proofs PARTI. USE THE DIAGRAM TO COMPLETE THE PROOFS
A) Given: m 1 = (2x - 135)
m2 = (x - 30)
Prove: x = 105
B) Given: mZ1 = (10x)
mZ3 = (9x + 28)
Prove: m23 = 100
Statements
Justifications
Statements
Justifications
1.
1.
1.
1.
2.
2. Corr. Post.
2.
2. Linear Pair Post
3. 2x - 135 = x - 30
3
3.
3. Substitution
4.
4. Subtraction Prop
4.
4. Combine Like Terms
5.
5.
5. 19x = 152
S
6.
6. Division
7. m3 = 100°
7.
C) Given: The diagram
Prove: m2 + m23 = 180°
Statements
Justifications
1. mZ1 + m23 = 180°
1.
2. m1 = m22
3. m2 + m23 = 180°
3

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

idk this answer sorry cant on this one.

step-by-step explanation:

there are no answer choices

step-by-step explanation:

the first option i believe

step-by-step explanation: