if r=5z, then 15z=3y, then r= ?
divide 15 and 3 by 3
then
5 z = y
so
r = y
To find the value of "r" in terms of "y", we'll need to substitute the given equations into each other.
Let's start with the first equation: r = 5z.
Next, we substitute this value of "r" into the second equation: 15z = 3y.
Since we know that r = 5z, we can rewrite the second equation as follows: 15(5z) = 3y.
Simplifying this expression, we get: 75z = 3y.
Now we want to express "r" in terms of "y". Since we know that r = 5z, we replace "z" in terms of "y" in the equation: r = 5z = 5(1/25)(75z).
Simplifying further, we have r = (1/5)(75z).
Applying the transitive property, we can rewrite the equation as r = (1/5)(3y).
Therefore, the value of "r" in terms of "y" is r = (3/5)y.