If you help me with my last question I will help you with this one
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
D. The exclusion is important because we cannot divide by zero. Apart from that we are simply looking at a function.
Answer:
x=2
Step-by-step explanation:
15 round by the nearest 10 is 20.
