Need hep with Math problem: six times times the reciprocal of a number 2 times the reciprocal of 2. Find the n
467197
Problem 16:\n6 x 1/n(reciprocal of n) = 2 x 1/2(reciprocal of 2)\n\nFirst, a number times it's reciprocal is always 1.\n\n6 x 1/n = 1\n\nSubtract 6.\n\n1/n = -5\n\nMultiply n.\n\n1 = -5n\n\nDivide by -5.\n\nn = 1/-5\n\nTo spgrabia: Think about order of operations. (1/x) must be done first.
756921
the answer is\n2Al + N2 ----> 2AlN
876876
6 * [6*(5/6 - 1/6)]\n6 * [6*(4/6)]\n6 * 4\nTough.
1067700
Let the numbers be n and n+1 (consecutive)\n\nthen the answer is 2n(n+1)\n\nYou know, I can tell you're really trying, (not just fishing for homework answers) because you didnt ask the whole question, just the part you needed help with setting up properly.\nGood Luck!
982580
Use binomial coefficients to solve this.\n\n| n |           n!\n|    |   =  ----------\n| k |        (n-k)!k!\n\nn is the number of possibilities and k is the number of unordered outcomes.\n\nCombination of six numbers from ten possibilities.\n\n| 10 |       10!          3628800         \n|      | = ------------ = --------------- = 210\n|   6 |    (10-6)!6!     (24)(720)\n\nCombination of four numbers from ten possibilities.\n\n| 10 |\n|      |\n|   4 |\n\nYou should be able to figure out the second one on your own.\nHere's a link on factorials, just in case you don't know what they are.\n\nhttp://mathworld.wolfram.com/Factorial.html
124205
7, 7, 2\n\n7*7=49\n49*2 = 98
917052
16/24....it's really not that hard...you should be able to solve it on your own.\nps. you might want to simplify it down to 2/3.
822232
Use the formula (n-2)*180 =1260 to solve this problem. Start by dividing both sides by 180 to get:(n-2)=7. This means that n=9
522619
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
1139003
(n/(n - 3)) + (5/(2n - 6))\n(n/(n - 3)) + (5/(2(n - 3)))\nMultiply everything by 2(n - 3)\n(2n + 5)/(2n - 6)
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Its 5=2n-6 \n\nwell done!
83408
6 because 6*7=42 and 6*9=54
956128
Simply multiply\n9 * 8 * 7 * 6\nBecause the first number can be 1-9 but not zero and the second number can be 1-9 but one number has already been used and so on and so forth.\nHope it helps.
833067
n/n is just 1. so this should be (1-2)-2/3=2/n-2 which would make n=6, unless you are using some strange notation that I have never seen.\n(1-2)-2/3=2/n-2\n-2-2/3=2/n-2\n-5/3=2/n-2\nadd  2 to both sides\n1/3=2/n\ninvert both sides\n3/1=n/2\nmultiply both sides by 2\n6=n
609300
This is more of a word problem or a riddle than a math problem.\n\nThe answer is 7 (SEVEN).  Remove its first letter and it becomes EVEN!
909198
This question doesn't make sense.  There's no n in the equation.  n could be equal to anything.
361299
2, 9, 16, 23, 30\n\nU(n+1) = Un + 7\n\nMoving through weeks on a calendar.\n\n\n\n50, 100, 200, 400\n\nU(n+1) = 2Un\n\nDoubling ingredients in a recipe.