The number 15 is divided into two numbers, the sum of their square is equal to 117. What are the two numbers?
951902
x+y=15 and x^2+y^2=117\n\nso, solve for y\ny=15-x\n\nthen substitute into the function and solve\nx^2+(15-x)^2=117\nx^2+225-30x+x^2=117\n2x^2-30x+108=0\nx^2-15x+54=0\n(x-6)(x-9)=0\n\nso, x=6, x=9; therefore y=9, x=6\n\nAlthough this is the long way to solve this, if you follow the methodology you will be able to solve all future problems like this.
365053
It's 15\n\n3 + 3 + 3 x 3 \n(3 + 3) + (3 x 3)\n(6) + (9) = 15
898734
105+135+121+140+117+x=720\n618+x=720\nadding -618\nx=102*
51487
First we calculate all squares:\nWe have 9*9 one by one squares, 8*8 two by two squares and\nSo total squares are: 9^2+8^2+7^2+...+1^2=285\n Where 1^2 stands for 9 by 9 square.\n\nNow we must calculate all squares containing the red spot:\n\nWe have one "one by one" square, 4 " two by two" squares,\n9 "for 3*3", 9 for "4*4", 9 for "5*5", 9 for "6*6", 9 for "7*7", 4 for "8*8" and 1 for "9*9";\nWhich is count to 55. \n\nSo the answer is 285-55=230
182775
there are 6 place for 15 student so:-\n\n15*14*13*12*11*10=answer\n\nor simply use combination since the arrangement is not important\n\n15C6
369949
V(pyramid) = 1/3 * b * h\n= 1/3 * (13 *12) * 15\n= 780
973275
The product of two numbers is another way of saying the two numbers multiplied together.\n\nSo the product of 3 and 69 is 3x69 = 207.
813994
the first one is (x+10)(x+8)\nand the second one is your second answer
596207
t   w   o   +   t   w   o\n20 23   15     20  23   15 = 116
1005028
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
899321
-/(1525) = -/(305*5) = -/(61*5*5) = 5-/(61)\n\nThat's a simple as you can make make.\n5 -/(61) ~ 39.051...
942916
your question has a problem...............\nif the sum is 13, then the other number has to be -35, which will not meet your other condition
693802
They are all the sums of two smaller numbers.  If you mean which one is the sum of two smaller square numbers, then it is 25 (the sum of 16 and 9.)
463035
3 10/15 + 7 9/15 = 10 19/15 = 11 4/15
898633
15a = 3a(a+8)\nFirst distribute the 3\n15a = 9a + 24\nSubtract 9a from each side\n6a = 24\nDivide both sides by 6\na = 4\n\nYou can easily check your answer by replacing a with 4.\n15(4) = 3(3*4 +8)\n60 = 3(12+8)\n60 = 3(20)\n60 = 60\nThus, a=4 is the correct answer.
1089449
It's as simple as plugging in numbers.  The number 15 becomes the letter "a", the number 7 is "b", and the number 55 is "c".  Just substitute the number for the letter in the formula and solve.
291785
To find the numbers you have to solve these 2 equations simultaneously.\nThe sum of two integers is 16 translates to the equation:\nx + y = 16\nThe sum of their squares is 130 translates to the equation:\nx^2 + y^2 = 130\nSolving for x and y gives you 7 and 9.\nAlways check to see if your answer makes sense.\n7 + 9 = 16\n7^2 + 9^2 = 49 + 81 = 130