Let
R = Ralph's age
S = Sara's age
First statement is translated as:
S = 3R
Second statement is translated as:
S + 4 = 2(R + 4)
Use the first equation to be substituted into the second one in terms of R which is the one we are actually going to solve for Ralph's age.
Since S = 3R, then
3R + 4 = 2(R + 4)
3R + 4 = 2R + 8
3R - 2R = 8 - 4
R = 4 years old
Maybe this will help! (:
https://youtu.be/1wPJfzStBqE
Answer:1. y = 2x - 3
2. y= 2x + 3
3. y = -2x + 3
4. y = -2x - 3
Step-by-step explanation:
Answer:
A' has the same shape but not the same size as Figure A.
Step-by-step explanation:
