SOLUTION: A teacher assigned homework and told the student that on each day after the first, they must complete twice the number of problems that they had done so far. if at the end of five

Algebra.Com
Question 49436: A teacher assigned homework and told the student that on each day after the first, they must complete twice the number of problems that they had done so far. if at the end of five days the students had completed one-third of the problems, how longs will it take them to complete the total assignment?
Answer by Born2TeachMath(20)   (Show Source): You can put this solution on YOUR website!
Not a lot of algebra going on here, just some number sense.
After 5 days, the students have completed one-third of the problems. We don't know how many that is, nor do we care. Now, on the next day, they must complete twice as many as they had done, which is twice of one-third, or the next two-thirds. Therefore, on the sixth day, they complete the other two-thirds of the problems. Which means all of the problems are done. So it takes six days to complete all of the HW.

RELATED QUESTIONS

My son's teacher game him this problem and i want to help him work throught. But I must... (answered by Nate)
A Spanish teacher requires that students devote no less than 1 hour a day to their... (answered by jim_thompson5910)
A contractor engages 16 men to build a wall 80 metres long and estimated that they will... (answered by ewatrrr)
kaitlyn and brittney are driving back to college after spring break. they plan to drive... (answered by ankor@dixie-net.com)
Carla is a teacher who must read 180 student papers and submit grades on Friday morning.... (answered by solver91311)
as students arrive the first day of school, they find 300 pennies arranged on a table... (answered by Edwin McCravy)
In how many ways can the countries be assigned so that there is at least one North... (answered by ewatrrr)
Two students are registered for the same class and attend independently of each other,... (answered by LinnW)
jim and joe are training for a big race by running a total of 60 laps. on the first day,... (answered by richwmiller)