25. the sum of a number and -11 is 16\n26. after spending 11.42 you have 5.20 left. How much money  did you have originally\n27. If you triple the nimber of sevings of fruits and vegetables you et each week  you will eat 33 servings per week how many servings of fruits and vegetables do you eat each week?\n28. The Quotient of a nember and 2.5 is -6\n29. the diffence of 3 times a number and 17 is -11
205722
These are all CORRECT!  Honest.  The last one is NOT 7/3!\n25. x+(-11)=16.\n    So, x=27\n26. x-11.42=5.20\n    So, x=16.62\n27. 3x=33\n    So, x=11\n28. x/2.5=-6\n    So, x=-9\n29. 3x-17=-11\n    So, x=2.
505059
"Q: 11) When three times a number, x, is added to a second number, y, the total is 33. The\nfirst number added to three times the second number is 19.\na)Form two equations connecting x and y.\nb)Find the two numbers."\n\neq 1: 3x + y = 33\neq 2: x + 3y = 19\n\nmultiply eq 2 by 3:\n3x + 9y = 57\nthen, subtr from eq 1:\n-8y = -24\ny = 3\nsolve for x using eq 2:\nx + 9 = 19\nx = 10\n\n"\nQ:11) Ahmed is x years old and his father is x2 years old. The sum of their ages is 56\nyears. Form an equation in x and solve it to find the age of each"\n\nx + 2x = 56\n3x = 56\nx = 18-2/3 years old for Ahmed\n2x = 37-1/3 years old for his father\n\nHope this helps!
656025
24 is the first number divisible by both 6 and 8 (forget mathematical term sorry).  6 going in 4 times and 8 3 times. So he bought 4bags of apples and 3bags of oranges.
497985
5 x {(24 - 19) x [(25 + 23) ÷ 12 - (9 - 7)]}\n\n5 x {5 x [48 ÷ 12 - 2]}\n\n5 x { 5 x [ 4 - 2]}\n\n5 x { 5 x [ 2] }\n\n5 x { 10 }\n\n50\n\nThe answer is 50\n\n- - - - - - - - - -s-
389838
1) 5<=x+1 is x<=-4  wrong, x >= 4\n\n2) 3a>4 is 3a>1.3    wrong, a >4/3\n\n3) y-6<9 is y<9        wrong  y< 15\n\n4) -2n<=10 is n>=-5    right\n\n5) b/3>1/3 is 1/3 <=b  wrong b>1
670501
21\nLets do this problem in reverse order.\nAfter giving 1/3 to her brother she is left with 6.\nThat means she has 2/3 of what she had.\nthat means she had 3*6/2 = 9 raisins before she gave it to her brother.\nNow add one she ate. So 10.\nNow she gave half to her sister that means she had 20.\nAdd 1 which she ate before that... so 21.
308228
-17 +t/5 = 3\nt/5 = 3 + 17\nt/5 = 20\nt = 100\n\n(5+r)/-2 = -6\n5+r = -6 * -2\n5 + r = 12\nr = 7 \n\nor\n\n5 + r/-2 = -6\nr/-2 = -11\nr = 22
593730
1. potatoes=2 cups\n    carrots=2 cups\n    onions=2 cups\n2. six\n3. 5.75\n4. estimating the amounts will allow you to have extra in case you need it and to give you an idea of how much you will need.
175307
The answer to your question is a straightforward 11/(18+11) = 0.3793....\nNow,now,now, did you try stumping us with all the superfluous data and particularly with that innocuous-looking 'senior' in the veggie list there??\n\nOf course, this answer holds if the preferences of the juniors are exclusive, and if you have included all the juniors in the survey to begin with(My turn to be superfluous).
156601
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.
147194
Let today's number be 'x'\nDay before yesterday = x/5\nyesterday = x/5+18 and this is equal to x/3\ntherefore,\nsolving x/5+18=x/3 you get x=135\nNow putting in the values,\nday before yesterday = x/5 = 27\nyesterday = x/3 = 45\ntoday = 135\ntomorrow = 4 times yesterday = 180
448250
Think of a number between 1 & 10.\n-----3\n\nMultiply your number by 9.\n-------27\n\nAdd the digits of your answer. (if it was 23 then 2+3=5)\n---------9\n\nWhen done correctly you should be left with a single number. Now minus 5\n---4\n\nIf your number is 1 your the letter A. If it's 2 your the letter B. 3 your C. 4 your D 5 your E etc etc.\n--------------D\n\nGo to the next letter in the alphabet after yours.\n---------E\n\nChoose an animal beginning with that letter no birds or insects though!!!\n---------elephant\n\nHave you thought of one? I'm gonna try and guess it.... ***PHANELET***\nIf you can rearrange these letters to get your animal I got it right ;-)\n\n----------pretty good ;)
402058
1) 45-9= 36\n2) 36-9= 27\n3) 27-9= 18\n4) 18-9= 9\n5) 9-9=0\nThere is no remainder so 45/9 = 5 because there were 5 subtractions.
589184
She started with 21. \n21 - 1 = 20 (eats one)\n20 / 2 = 10 (1/2 go to sister, so left with 1/2 for herself)\n10 - 1 = 9 (eats one)\n9(2) / 3 = 6 (1/3 go to bro, so left with 2/3 for herself)
523013
Both of the top 2 answers are correct depending on what you meant. If you meant the sum of 5 times EACH of the numbers then the first answer is correct. If you meant the smaller number added to 5 times the larger number then the second answer is correct.
449608
1. An arithmetic sequence has a(sub 5)= -10 and a(sub 12) =18. Find a(sub 2) and a(sub 17)\n\nLet a(sub 1) = a and d = common difference.\nFor an AP:\na(sub n) = a + (n - 1)d\n\nSo a(sub 5) = a + 4d = -10 .... (1)\nand a(sub12) = a + 11d = 18 . (2)\nEquation (2) - equuation (1)\n7d = 28\nSo d = 4\nSo a = -26\na(sub 2) = a + d = -22\na(sub 17) = a + 16d = 38\n\n2. Find s(sub 4) for the geomtric sequence: \na(sub 1) = 5p, a(sub 2) = -10p\n\nLet a(sub 1) = a and common ratio be r\n\nFor a GP\na(sub n) = ar^(n-1)\n\na(sub 1) = a = 5p .......... (1)\na(sub 2) = ar =  -10p ..... (2)\nEquation (2)/equation (1)\nr = -2\n\nSo a(sub n) = 5p * (-2)^(n-1)\n\ns(sub n) = a(r^n - 1)/(r - 1)\n= 5p((-2)^n) - 1)/(-2 - 1)\n= -5p/3 ((-2)^n - 1)\n\nSo s(sub 4) = -5p/3 ((-2)^4 - 1)\n= -25p
500410
1.) Ms. Jordan 275 / 2500 = 0.11 \n     0.11  x  100 = 11%\n\n2.) 900 students x 1.07 = 963 students .\n\n3.) Virus Scan  300 sec / 0.40 = 750 sec for 100%\n\n4.) Gasoline... 8882 / 0.85 = 10,449 BBLs per day.\n\n5.) Jerry's new salary is\n     18,500 x 1.105 = $ 20,442.50\n\n6.) Chen's Investment wound up being \n     6400 x 0.918 = $ 5875.20\n\nHave a nice day,\nZahbudar