Answer:
When writing your own two-column proof, keep these things in mind:
Number each step.
Start with the given information.
Statements with the same reason can be combined into one step. ...
Draw a picture and mark it with the given information.
You must have a reason for EVERY statement.
Step-by-step explanation:
Answer:
b = 
Step-by-step explanation:
Given
a = 4b + 
- b, that is
a = 3b +
Multiply through by 3 to clear the fraction
3a = 9b + 2 ( subtract 2 from both sides )
3a - 2 = 9b ( divide both sides by 9 )
= b
If angle 10 and 15 are congruent ( the same) that would mean lines a and b would need to be parallel with each other because that have the same angles.
The answer ic C.
Answer: 3/40
Step-by-step explanation:
0.5 = 1/2
0.15 = 3/20
1/2 * 3/20
1 * 3 = 3
2 * 20 = 40
3/40 is the simplest form, since 3 and 40 cannot both be divided by the same number.
X Is 18 Because on the other side if you do 21-12 it gets 8 so then you add 8 to 10 then you get 18
