| Recent Answers from Abe Mantell |
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2008-09-02 Math Problem help: Hello Toneicia, I am a bit confused by the first fraction, 31/24, since it is greater than one! So, either it is incorrect, or it does not truly represent the fraction of accidents (otherwise it...
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2008-09-01 Word Problems for the Unknown: Hello Amy, Let x=the value of the car in very nice condition. Since 1 3/4 = 7/4, we get: (7/4)x=$62,125...now solve for x by dividing by 7/4, which is equivalent to multiplying by 4/7 (the recipricol...
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2008-08-31 word problem: Hello Shary, There are 7x7 backpacks = 49 backpacks...there are 49x7 cats = 343 cats ...there are 343x4 cat legs = 1372 cat legs...there are 7x2 girls legs = 14 more legs, for a total of 1372+14=1386...
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2008-07-23 find the ratio of speed: Hello Steve, If I correctly interpret....you are saying that in the time it took the soldiers to travel their own length, the officer walked from the end to the front and back to the end...yes?...
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2008-07-22 Half life: Hello Olivia, Let A(t)=the amount of Polonium-210 remaining after t days. Then A(t)=Ao*e^(kt)...since the 1/2-life is 138.4 days, we get 1/2=1*e^(k*138.4)==>138.4k=ln(1/2) ==> k=ln(1/2)/138.4 which...
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