- A gardener adds 3.5 oz of plant food to 2 gallons of water.
The amount that he was supposed to add is 4 oz. What is the
percent error in mixing the plant food?

12.5%

Step-by-step explanation:

% error =

Error /actually measurement x 100%

Error = 4 oz - 3.5 oz = 0.5

Actually measurement = 4 oz

Therefore

% error = 0.5/4 x 100%

= 0.125 x 100%

= 12.5%

step-by-step explanation:

left be aligning the decimal points is required to not required see the number of digits to the right