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Math for Kids
 
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Math for KidsWord Problems

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2008-07-07  Word Problems - Help Solve:   OOPS! Sorry, disregard my previous reply to this! OK... 1. Let x=age, y=SS benefit. Thus, (62,7000), (63,7500), (64,8000). ...The rate of change is $500 per year, so the slope is 500. ...y-7000=500(x-62)...
2008-07-06  Algebra - Word Problem:   Since work = rate x time... The rate Sam can work is 1/4 (of a job/day), Lisa works at the rate of 1/6 (of a job/day), and Tom works at the rate of 1/2 (job/per day)...thus, together, they work at...
2008-07-06  Word Problems - Help Solve:   Hello Tyna, Let x=the time (in minutes), y=heart rate. Thus, we get the two ordered pairs: (2,82) & (3,86) Slope=(change in y)/(change in x)=(86-82)/(3-1)=4 Thus, y-82=4(x-2) ==> y=4x+74 So, after...
2008-07-05  Word Problems - please tell me how to do it as soon as possible:   Hello Ayesha, Let x=the original speed (in miles/hr), thus x-15=the speed during the last 80 miles. Let t=the time driven the last 80 miles at speed x-15 (in hrs), thus 6-t=the time driven at the...
2008-07-05  Basic Math - percents:   Hello, Art. 1% of 100 is 1. To calculate percentage, divide. If you want to know what percentage 8 is of 24, divide 24 into 8. 24 divided in 8 equals 1/3, or 33.3%. If you already have...


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