Paulina Has Completed 24 of the 42 Math Problems

Math Question: Paulina has completed 24 of the 42 math problems she was assigned for homework. She plans to finish her homework by completing 9 math problems per hour (h). Write an equation to find the number of hours it will take Paulina to complete her math homework assignment.

Math questions completed: 24 math problems

Total math problems: 42

Math problems remaining: 42 -24

Math problems to solve or work on: 18

Number of hours taken to complete 9 problems = 1 h

Number of hours used to complete 18 math problems = 18/9

Duration time used = 2 hours (h)

Pauline took 2 hours to solve 18 math problems.

Formula Used

Total number of math assignment questions = T

Problems already solved = C

Problems solved per hour = P

Time needed to complete the remaining part of the assignment = h

h = (T-C)/P

Creating an Equation

An equation is needed to help compute the duration of time used to solve the rest of the math problems.

T = 42, C = 24 and P = 9

We can derive the equation from the step-by-step method indicated above:

Number of problems to be completed in hours = 9h

Pauline has already completed 24 problems, while the total number of problems is 42.

So, the equation 24 + 9h = 42 will aid in finding the number of hours taken to complete the math homework assignment.