The sum of two numbers is 30.  Their difference is 6.  What are the two numbers?
536743
The sum of two numbers is 30\nx+y = 30\n\nThier difference is 6\nx-y = 6\n\nEliminate Y through addition (it's practically eliminated itself)\n\nx+y = 30   (+)\nx-y = 6\n_________\n2x = 36\n\nx = 18\n\nnow \nx + y = 30 right?\n18 +y = 30 (x = 18 so 18 replaces x)\n-18    -18\n___________\ny = 12
206007
70 and 55 is 5\n\n30 and 24 is 6\n\n18 and 42 is 6
712932
x+30=82\n\n(subtract 30 from both sides to isolate x)\nx+30-30 =82 -30\n  \nx=52
133517
the solutions is 7,8,3,2 or 7,6,5,2. The problem works with both sets of numbers.
30019
28 - 7*2*2\n\n155 - 5*31
709150
"Twice" --> 2 *\n"sum of a number and 3" -> (n + 3)\n"is the same as" --> = \n"11 increased by the number" --> 11 + n\n2(n + 3) = 11 + n\n\nDistribute the 2 through the parentheses:\n2n + 6 = n + 11\n\nGet like terms together (subtract n and subtract 6):\n2n - n = 11 - 6\n\nSimplify:\nn = 5\n\nChecking:\nThe sum of 5 and 3 is 8.\nTwice this is 16.\n\n11 increased by 5 is 16, which is the same.\n\nSo the number is 5.
316451
the numbers are \n 2+6+18= 26\n 2*6*18= 216
217069
114,696/ 30 = 3823.2\n\n3,823.2 minutes  (.2 minutes = 12 seconds)    ...or....\n63 hours, 43 minutes, 12 seconds              ...or....\n2 days, 15 hours, 43 minutes, and 12 seconds\n\nPlease take time to vote for the best answer.
530853
So where's that starting point?  Either we start (yesterday) with Mary having $785.63 we subtract $57. and $125. for 603.63.  Then we add $57.25 for a total of 660.88 (B) \nOR\nwe start we $785.63 (today) anb subtract $57. and $125 for $603.63 (C).  The $57.25 doesn't matter cause Mary did that yesterday....
1070468
Mutiply $28 by 0.30, then subrtact 28 again, and that should tell you how much it is. ($19.60. It will come up as -19.60 though, just ignore the negative)
288394
well lets take the first example- ok so the middle number is 11. and the number with no 'x' in it is 30. what makes 30 = 6 x 5 or 3 x 10. so try adding and subtracting those numbers in your mind: 6+5=11 ... 3+10=13 ...6-5=1...5-6=-1...10-3=7...3-10=-7. so which one of those give 11  ->> 6 + 5. \nso all u do is x^2+ 6x + 5x + 30 [split 11 as 6 + 5]\nur next step ; take 'x' common for the first to terms and 5 common for the 2nd two terms, u get\nx(x+6)+ 5(x+6)\ntake the bracket term multiplied by the un-bracket terms\n(x+5)(x+6)\n\nvoila...problem solved
1166602
Set it up: x=1/y which simplifies to x/y. So if y=30 when x=2, then 2/30=0.066667 When y=600, then x/600=0.066667; multiply 0.066667 by 600 for your answer of x=40. Good luck!
4425
The two original 20 and 226. Plus the sum of the two 246, and the difference 206.
685138
actually the way i see it there are two numbers in the space.\nThe difference between each number is a prime number(consecutive prime numbers)\ndifference between 1 and 3 is 2\ndifference between 3 and 6 is 3\ndifference between 6 and 11 is 5\ndifference between 11 and the next no. is 7 i.e 18\ndifference between 18 and next no. is 11 i.e. 29\ndifference between 29 and 42 is 13\ngot it?\nhope your question was wrong.. hehe\n\nWhat i'm trying to say is the two numbers are\n18 and 29
475512
a) P(D+|K+) = P(D+ and K+)/P(K+)\n17/30 = P(D+ and K+)/.6\nP(D+ and K+) = .34\n\nb) P(D- | K+) = P(D- and K+)/P(K+)\n=P(D- and K+)/.6\n=(P(K+) - P(D+ and K+))/.6\n=.26/.6\n= 13/30
439650
(y-6)(y-5)\n\n-6 and -5 add up to -11\n-6 and -5 multiply to 30
961063
let # of large ones = x and # of small ones = y\n\nthen x = 30+3y\nand x=6y\n \n=> 6y = 30 + 3y\n=> 3y = 30 \n=> y = 10\n\nand x = 6*10 = 60