Question

Emily estimated that there were 315 students at a soccer game the actual number of students at the game with 350 what was the percent error of her estimate

Answer 1

For this case we have that the equation to determine the percentage of error is given by:

$E = \frac {| estimated - current |} {current} * 100$

Therefore, replacing values we have:

$E = \frac {| 315 - 350 |} {350} * 100\\E = \frac {35} {350} * 100\\E = 10$

Answer:

the percent error of his estimate was:

$E = 10$%

Answer 2

How much was she wrong by over the total students. then divide to make the denomentator 100 and the (new) numerator is your answer