The price of 5 kilograms of premium fertilizer is the same as the price of 12 kilograms of regular fertilizer. If the price of premium fertilizer is y cents per kilogram more than the price of regular fertilizer, what is the price, in cents, per kilogram of premium fertilizer?
Choose the correct choice from the following options:
A) y/30
B) 5/6*y
C) 6/5*y
D) 5y
E) 12y/7
Usingpfor premium andrfor regular, I got two equations from the question stem:   5p = 12r and p = r+y   Substitute for p: 5(r+y) = 12r   Distribute: 5r + 5y = 12r   Subtract 5r from both sides: 5y = 7r   Plug back into the first equation: 5p = 12(5y/7)   Distribute: 5p = 60y/7   Divide both sides by 5: p = 12y/7   The answer is 12y/7.
<result>E</result>
The price of 5 kilograms of premium fertilizer is the same as the price of 12 kilograms of regular fertilizer. If the price of premium fertilizer is y cents per kilogram more than the price of regular fertilizer, what is the price, in cents, per kilogram of premium fertilizer?