Sebastian studies from 3: 15 - 4: 45. his sister, sasha studies from 4: 30 - 6: 15. who studied longer and by how much

Step-by-step explanation:

Sebastian studies from 3 : 15 to 4 : 45.

the time of Sebastian's studies

  4 : 45

- 3 : 15  

   1 : 30       hours

Sasha studies from 4:30 to 6:15.

The time of Sasha's studies

  6 : 15

- 4 : 30  

  1  : 45       hours

Sebastian studied 1 hour 30 minutes and Sasha studied 1 hour 45 minutes.

Difference in time of study = 1 : 45

                                              - 1 : 30  

                                                0 : 15   hours

Sasha studied longer than Sebastian by 15 minutes.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation: