this is a math problem that i am stuck on
213844
3/8 - 3/10 = 30/80 - 24/80 = 6/80 = 3/40 = 0.075
39161
U need to use the quadratic formula.
45011
Use a calculator - numerator divided by denominator will give you the answer.
492327
Well done! Not one is wrong. The answer to the third one is y = 11. If y = 11/12, you'd end up with 11=132!
376210
C is correct but not complete... only the 3 is factored out... the real answer would be:\n\n3(x-1)(x+4)
368733
add 4, divide by 4\nadd 3, divide by 3\nadd 2, divide by 2\nthe answer is 3
565431
2x<1 , x<0.5\n -1<x\n\n     -1< x<0.5
643683
this question will require calcs using logarithm.\nhence will take time
566418
if \na=(v-u)/t\nthen\na*t=v-u\nthen\nt=(v-u)/a\nor\nt=(15-0)/0.75 \n\nSo as the previous poster says the answer really is 20
329935
the sum of the two smallest numbers must be higher than the third one so your answer is d)
509402
It is 32. Yeah grandma!!!! What you did wrong was you divided by 2 not multiplied. To get n by itself you need to multiply each side by 2 not divide. Its alright I did the same thing in Middle School\n\n16=n/2\n2/1 * 16=n/2 *2/1\n32=n
625554
i wont answer.... log onto www.mathguru.com and discover solutions with explanations.
241988
1 1 1 2\n1 1 2 1\n1 2 1 1\n2 1 1 1\n\nNo other case is possible, So n(A)=4\n\n\n1 1 1 3\n1 1 3 1\n1 3 1 1\n3 1 1 1\n\n1 1 2 2\n1 2 1 2\n1 2 2 1\n\n2 1 1 2\n2 1 2 1\n2 2 1 1\n\nNo other possibility\nn(B)=10
626054
N = the number\nN - 2   <<<   2 subtracted from the number\n( N - 2 ) x 3   <<<   the difference tripled\nN + 6   <<<   6 more than the number\n\n( N - 2 ) x 3 = N + 6\n3N - 6 = N + 6\n2N = 12\nN = 6
484842
Well, you got me stumped!\n\n-------------------------------------\n\nI started working it out and got pretty far.\n\nThe above given information might be incorrect.  Maybe?  I don't know.\n\nI tried it several times.  I even double and triple checked my work!\n\n---------------------------------------------\n\nThis is as far as I got and then I got stumped:\n(D-E) (B+C) = (10J + AFGH) / A\n\n------------------------------------------------------\n\nGreat question!\n\nI look forward to the continuing discussion.\n\nI love the way you worded your question.  Right on!!!\n\nKeep those challenge questions coming!  ;o}
538158
I am stuck on this one. I really would like to know the best answer.
580030
(1+2)/2=3/2\n1+(2/2)=2