Rs=8y+4

ST=4y+8
RT=15y-9

A. What is the value of y.
B. What is Rs, ST, RT

Now, this is better. Surely you can do it, since we went through this all before, just using different numbers.

8y+4 + 4y+8 = 15y-9
3y = 21
y=7

Yeahh. Thanks!

To find the value of y, we'll set up and solve an equation using the given information.

Given:
Rs = 8y + 4
ST = 4y + 8
RT = 15y - 9

A. To find the value of y:
1. Rs = ST
8y + 4 = 4y + 8
8y - 4y = 8 - 4
4y = 4
y = 1

Therefore, the value of y is 1.

B. Now, we can substitute the value of y into the equations to find the values of Rs, ST, and RT:
1. Rs = 8y + 4
Rs = 8(1) + 4
Rs = 8 + 4
Rs = 12

2. ST = 4y + 8
ST = 4(1) + 8
ST = 4 + 8
ST = 12

3. RT = 15y - 9
RT = 15(1) - 9
RT = 15 - 9
RT = 6

Therefore, Rs = 12, ST = 12, and RT = 6.