If r=5z then 15z=3y, then r=?
from the second
15z=3y
5z = y
but r = 5z
so r = y
To find the value of r, we need to use the information given in the equations.
We are told that r = 5z and 15z = 3y.
First, let's solve the second equation for z:
15z = 3y
Dividing both sides of the equation by 15, we get:
z = 3y/15
Simplifying the right side further, we have:
z = y/5
Now that we know the value of z, we can substitute it into the first equation:
r = 5z
Substituting z = y/5, we get:
r = 5(y/5)
The '5' in the numerator and denominator cancel out, leaving us with:
r = y
Therefore, the value of r is y.