You estimate the distance from your house to the library to be 2.4 miles. the actual distance is 2.6 miles. find the percent error. round your answer to the nearest tenth of a percent.

7.7%

Step-by-step explanation:

To find the percent error, take the absolute value of (actual amount - estimate) and divide it by the actual amount).  Then multiply it by 100 %

percent error = | actual - estimate|

                          * 100%

                             actual          

                      = | 2.6 -2.4|

                        * 100%

                                  2.6

                      = .2 * 100%

                            2.6

                       =7.69230769%

To the nearest tenth percent

                      =7.7%

she played for 18.75 hours.

step-by-step explanation:

if she played 2/4 of a hour on tuesday. and there is 60 minutes in an hour and 60 divided by 4 is 7.5. and she played 2/4 of an hour on thursday then again 60 divided by 4 is 7.5, you add 7.5+7.5=56.25. now you have to do 1/4 of an hour, it equals 3.75. now you have to add them all up. 3.75+7.5+7.5=18.75

i hope this and i hope you get it right. it took me a while to get this done for you. : )

i hope this is what you were looking for.

see attached graph