The price of 5 kilograms of premium fertilizer is the same as the price of 16 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 one
A) y/30  B) 5/6*y  C) 6/5*y  D) 5y  E) 16y/11
Usingpfor premium andrfor regular, I got two equations from the question stem:   5p = 16r and p = r+y   Substitute for p: 5(r+y) = 16r   Distribute: 5r + 5y = 16r   Subtract 5r from both sides: 5y = 11r   Plug back into the first equation: 5p = 16(5y/11)   Distribute: 5p = 80y/11   Divide both sides by 5: p = 16y/11   The answer is 16y/11.
<result>E</result>
The price of 5 kilograms of premium fertilizer is the same as the price of 16 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?