Answer: r = 6
Step-by-step explanation: We would start by making an equation for this which would be 9r / 2 = 27. We need to get r by itself so we first multiply 2 on both sides by 2 to get rid of that pesky 2.
[tex]\frac{9r}{2}[/tex] * 2 = 27 * 2
9r = 54
Now we have to get rid of the 9 and since this is multiplication, we have to divide 9 on both sides.
[tex]\frac{9r}{9}[/tex] = [tex]\frac{54}{9}[/tex]
This would give us r = 6.
