Answer:
2 and 3 are correct, not sure if you plan on doing 1, in which case I'd help you
The answer to that would be “169”
Answeryes
Step-by-step explanation:
Where are the variables for the equation?
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
