Darnel decided to make his grandmother's favorite pound cake. In the recipe, it calls for 2 cups of sugar but Darnel added 3 cups of sugar. What is the percent error?

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

60: 45 =12: 9 =4: 3 so the answer is 4: 3