Answer:
A. Multiply 3x−3y=1 by 2, and multiply −2x+4y=2 by 3.
Step-by-step explanation:
Given
Required
A good first step
A good first step is to eliminate x and this is done as follows:
Multiply by 2 (gotten from coefficient of x in the second equation)
Multiply by 3 (gotten from coefficient of x in the first equation)
This gives:
Add both equations
<em>Hence (a), is true</em>
Answer: B
Step-by-step explanation:
If you divide the word by minutes for each one you get 216 which is for the record speed and if you divided how fast Charlie typed it would be 140 which mean that Charlie types slower then the record speed
Mm I don't know, why is that question? You must have an weird teacher
Answer:
2/3
Step-by-step explanation:
4/6 can be simplified to 2/3 aswell as 8/12
