Clea estimates that a glass contains 250.55 mL of water. The actual amount of water in the glass is 279.48 mL. To the nearest tenth of a percent, what is the percent error in Clea's estimate?
The only thing you need to solve this task is to know the percent error formula:
(theoretical value-experimental value): theoretical value)) * 100 Your theoretical value is 279, as it is the value that you know, and the experimental -250 is your calculated value. 279-250/279 29/250 0.116*100 11.6% Then you can recheck everything: 250*0.116=29 250+29=279