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Thursday, February 5, 2009

Time and Distance Problem 8

In this Algebra time and distance problem we have Bill leaving in a vehicle which proportionally increases or decreases its speed depending on how fast the wind is traveling. If the wind is 15 mi/hr coming and going the same distance and it takes him 4 hours going with wind behind him and 5 hours coming back with the wind coming head on, how fast was he coming and going?


Time and Distance Problem 8 Solution





Tme and Distance Problem 7

In this Algebra time and distance problem we have Bill who leaves going an average speed of 60 mi/hr and Craig who leaves 2 hours after Bill taking the same path at 90 mi/hr. How long will Craig take to catch up to Bill and how far would he have traveled in that time?


Time and Distance Problem 7 Solution





Monday, February 2, 2009

Work Problem 3

In this Algebra work word problem, we have pump A that can fill a pool in 12 hours and pump B which can fill the same pool in 6 hours. However, there is also a leak in the pool, and a full pool will empty out in 24 hours. How long would it take to fill the pool if pumps A and B work together and the leak was still present?

Solution to Work Problem 3




Sunday, February 1, 2009

Work Problem 2

In this Algebra work word problem we have pump A that can fill the pool in 10 hours and we have pump B that can fill the pool in 8 hours. If both pumps A and B were used at the same time how long could would it take to fill the same pool?



Work Problem 2 Solution
** don't cheat try it yourself 1st

Thursday, October 9, 2008

Lever Problem 4

In this Algebra Lever Word Problem, Samuel who weighs 65 lbs sits 4 feet away from the fulcrum of a teeter totter, while his friend Steve, who weights 85 lbs, sits twice as far away on the same side of the teeter totter, How far would Big Billy who weights 200 lbs have to sit on the opposite side of the teeter totter in order for teeter totter to balance?

Lever Problem 4 Solution

Sunday, September 28, 2008

Work Problem 1

In this Algebra work problem, Dan wants to hire a worker to do his lawn. He only has 6 hours to have it done. The 1st lawn care guy named Steve said it would take 9 hours to do the job, and the 2nd guy Joe said he would take 10 hours to do the job. If Dan hires both, and assuming they get the same amount of work done together as they would individually, how long would it take them to get the lawn done together?

Work Problem 1 Solution

Wednesday, September 3, 2008

Cricket Formula

This is a fun algebra novelty that will allow you to figure out the temperature on a hot summer day based on the number of times a cricket chirps. This "cricket formula" will provide you with the temperature in degrees Fahrenheit.

Cricket Formula
T = C4 + 37


where,

T = outdoor temperature
C4 = number of times a cricket chirps in 15 seconds(1/4 of a minute)
C = Chirps
4 = 1/4 minute

So, if a cricket chirped is 60 times in 15 seconds then:

T = 60 + 37 or 97 degrees Fahrenheit


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