What is the percent increase from 250 to 900? 1. Write the percent change formula for an increase.

Percent Increase =
Amount of Increase
Original Amount

2. Substitute the known quantities for the amount of the increase and the original amount.

Percent Increase =
900 − 250
250

3. Subtract.

Percent Increase =
650
250

4. Express the ratio as a percent:

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

Arrange these numbers from least to greatest 3/5 5/7 2/9

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.