Question

20 POINTS IF YOU HELP ME

REINFORCE Mark is testing the precision of his postal scale. He places a 2-gram weight on
the scale and it registers 1.65 grams. What is the percent error of the scale?

Answer 1

I’m not sure but I think u can just subtract 2-1,65 and than multiply by 100

Answer 2

21%

Explanation:

to find percent error you subtract the theoretical (actual) from the experimental, then divide by the theoretical; what you get is a decimal so if you multiply it by 100 you will get the percent

theoretical = 2.0 grams

experimental = 1.65 grams

(1.65 - 2.0) / 1.65 = -0.35/1.65 = -0.21

0.21 x 100 = 21 %

the scale has a 21% probability of being inaccurate