Tutor:

New! Get regular updates about newly solved problems via algebra.com's RSS system.

---

Recent problems solved by 'Fombitz'

Fombitz answered: 13805 problems
Jump to solutions: 0..29 , 30..59 , 60..89 , 90..119 , 120..149 , 150..179 , 180..209 , 210..239 , 240..269 , 270..299 , 300..329 , 330..359 , 360..389 , 390..419 , 420..449 , 450..479 , 480..509 , 510..539 , 540..569 , 570..599 , 600..629 , 630..659 , 660..689 , 690..719 , 720..749 , 750..779 , 780..809 , 810..839 , 840..869 , 870..899 , 900..929 , 930..959 , 960..989 , 990..1019 , 1020..1049 , 1050..1079 , 1080..1109 , 1110..1139 , 1140..1169 , 1170..1199 , 1200..1229 , 1230..1259 , 1260..1289 , 1290..1319 , 1320..1349 , 1350..1379 , 1380..1409 , 1410..1439 , 1440..1469 , 1470..1499 , 1500..1529 , 1530..1559 , 1560..1589 , 1590..1619 , 1620..1649 , 1650..1679 , 1680..1709 , 1710..1739 , 1740..1769 , 1770..1799 , 1800..1829 , 1830..1859 , 1860..1889 , 1890..1919 , 1920..1949 , 1950..1979 , 1980..2009 , 2010..2039 , 2040..2069 , 2070..2099 , 2100..2129 , 2130..2159 , 2160..2189 , 2190..2219 , 2220..2249 , 2250..2279 , 2280..2309 , 2310..2339 , 2340..2369 , 2370..2399 , 2400..2429 , 2430..2459 , 2460..2489 , 2490..2519 , 2520..2549 , 2550..2579 , 2580..2609 , 2610..2639 , 2640..2669 , 2670..2699 , 2700..2729 , 2730..2759 , 2760..2789 , 2790..2819 , 2820..2849 , 2850..2879 , 2880..2909 , 2910..2939 , 2940..2969 , 2970..2999 , 3000..3029 , 3030..3059 , 3060..3089 , 3090..3119 , 3120..3149 , 3150..3179 , 3180..3209 , 3210..3239 , 3240..3269 , 3270..3299 , 3300..3329 , 3330..3359 , 3360..3389 , 3390..3419 , 3420..3449 , 3450..3479 , 3480..3509 , 3510..3539 , 3540..3569 , 3570..3599 , 3600..3629 , 3630..3659 , 3660..3689 , 3690..3719 , 3720..3749 , 3750..3779 , 3780..3809 , 3810..3839 , 3840..3869 , 3870..3899 , 3900..3929 , 3930..3959 , 3960..3989 , 3990..4019 , 4020..4049 , 4050..4079 , 4080..4109 , 4110..4139 , 4140..4169 , 4170..4199 , 4200..4229 , 4230..4259 , 4260..4289 , 4290..4319 , 4320..4349 , 4350..4379 , 4380..4409 , 4410..4439 , 4440..4469 , 4470..4499 , 4500..4529 , 4530..4559 , 4560..4589 , 4590..4619 , 4620..4649 , 4650..4679 , 4680..4709 , 4710..4739 , 4740..4769 , 4770..4799 , 4800..4829 , 4830..4859 , 4860..4889 , 4890..4919 , 4920..4949 , 4950..4979 , 4980..5009 , 5010..5039 , 5040..5069 , 5070..5099 , 5100..5129 , 5130..5159 , 5160..5189 , 5190..5219 , 5220..5249 , 5250..5279 , 5280..5309 , 5310..5339 , 5340..5369 , 5370..5399 , 5400..5429 , 5430..5459 , 5460..5489 , 5490..5519 , 5520..5549 , 5550..5579 , 5580..5609 , 5610..5639 , 5640..5669 , 5670..5699 , 5700..5729 , 5730..5759 , 5760..5789 , 5790..5819 , 5820..5849 , 5850..5879 , 5880..5909 , 5910..5939 , 5940..5969 , 5970..5999 , 6000..6029 , 6030..6059 , 6060..6089 , 6090..6119 , 6120..6149 , 6150..6179 , 6180..6209 , 6210..6239 , 6240..6269 , 6270..6299 , 6300..6329 , 6330..6359 , 6360..6389 , 6390..6419 , 6420..6449 , 6450..6479 , 6480..6509 , 6510..6539 , 6540..6569 , 6570..6599 , 6600..6629 , 6630..6659 , 6660..6689 , 6690..6719 , 6720..6749 , 6750..6779 , 6780..6809 , 6810..6839 , 6840..6869 , 6870..6899 , 6900..6929 , 6930..6959 , 6960..6989 , 6990..7019 , 7020..7049 , 7050..7079 , 7080..7109 , 7110..7139 , 7140..7169 , 7170..7199 , 7200..7229 , 7230..7259 , 7260..7289 , 7290..7319 , 7320..7349 , 7350..7379 , 7380..7409 , 7410..7439 , 7440..7469 , 7470..7499 , 7500..7529 , 7530..7559 , 7560..7589 , 7590..7619 , 7620..7649 , 7650..7679 , 7680..7709 , 7710..7739 , 7740..7769 , 7770..7799 , 7800..7829 , 7830..7859 , 7860..7889 , 7890..7919 , 7920..7949 , 7950..7979 , 7980..8009 , 8010..8039 , 8040..8069 , 8070..8099 , 8100..8129 , 8130..8159 , 8160..8189 , 8190..8219 , 8220..8249 , 8250..8279 , 8280..8309 , 8310..8339 , 8340..8369 , 8370..8399 , 8400..8429 , 8430..8459 , 8460..8489 , 8490..8519 , 8520..8549 , 8550..8579 , 8580..8609 , 8610..8639 , 8640..8669 , 8670..8699 , 8700..8729 , 8730..8759 , 8760..8789 , 8790..8819 , 8820..8849 , 8850..8879 , 8880..8909 , 8910..8939 , 8940..8969 , 8970..8999 , 9000..9029 , 9030..9059 , 9060..9089 , 9090..9119 , 9120..9149 , 9150..9179 , 9180..9209 , 9210..9239 , 9240..9269 , 9270..9299 , 9300..9329 , 9330..9359 , 9360..9389 , 9390..9419 , 9420..9449 , 9450..9479 , 9480..9509 , 9510..9539 , 9540..9569 , 9570..9599 , 9600..9629 , 9630..9659 , 9660..9689 , 9690..9719 , 9720..9749 , 9750..9779 , 9780..9809 , 9810..9839 , 9840..9869 , 9870..9899 , 9900..9929 , 9930..9959 , 9960..9989 , 9990..10019 , 10020..10049 , 10050..10079 , 10080..10109 , 10110..10139 , 10140..10169 , 10170..10199 , 10200..10229 , 10230..10259 , 10260..10289 , 10290..10319 , 10320..10349 , 10350..10379 , 10380..10409 , 10410..10439 , 10440..10469 , 10470..10499 , 10500..10529 , 10530..10559 , 10560..10589 , 10590..10619 , 10620..10649 , 10650..10679 , 10680..10709 , 10710..10739 , 10740..10769 , 10770..10799 , 10800..10829 , 10830..10859 , 10860..10889 , 10890..10919 , 10920..10949 , 10950..10979 , 10980..11009 , 11010..11039 , 11040..11069 , 11070..11099 , 11100..11129 , 11130..11159 , 11160..11189 , 11190..11219 , 11220..11249 , 11250..11279 , 11280..11309 , 11310..11339 , 11340..11369 , 11370..11399 , 11400..11429 , 11430..11459 , 11460..11489 , 11490..11519 , 11520..11549 , 11550..11579 , 11580..11609 , 11610..11639 , 11640..11669 , 11670..11699 , 11700..11729 , 11730..11759 , 11760..11789 , 11790..11819 , 11820..11849 , 11850..11879 , 11880..11909 , 11910..11939 , 11940..11969 , 11970..11999 , 12000..12029 , 12030..12059 , 12060..12089 , 12090..12119 , 12120..12149 , 12150..12179 , 12180..12209 , 12210..12239 , 12240..12269 , 12270..12299 , 12300..12329 , 12330..12359 , 12360..12389 , 12390..12419 , 12420..12449 , 12450..12479 , 12480..12509 , 12510..12539 , 12540..12569 , 12570..12599 , 12600..12629 , 12630..12659 , 12660..12689 , 12690..12719 , 12720..12749 , 12750..12779 , 12780..12809 , 12810..12839 , 12840..12869 , 12870..12899 , 12900..12929 , 12930..12959 , 12960..12989 , 12990..13019 , 13020..13049 , 13050..13079 , 13080..13109 , 13110..13139 , 13140..13169 , 13170..13199 , 13200..13229 , 13230..13259 , 13260..13289 , 13290..13319 , 13320..13349 , 13350..13379 , 13380..13409 , 13410..13439 , 13440..13469 , 13470..13499 , 13500..13529 , 13530..13559 , 13560..13589 , 13590..13619 , 13620..13649 , 13650..13679 , 13680..13709 , 13710..13739 , 13740..13769 , 13770..13799 , 13800..13829, >>Next

Distributive-associative-commutative-properties/342303: 2(x/4-1)=8 x=? Can you please solve this problem and explain how you got the answer please. 1 solutions Answer 244966 by Fombitz(13828)   on 2010-09-13 07:51:43 (Show Source): You can put this solution on YOUR website! Divide both sides by . Add to both sides. Multiply both sides by .

Miscellaneous_Word_Problems/342206: A nut mixture contains 10% cashews. How many kilograms of the mixture and how many kilograms of the cashews should be mixed to give 6 kg of a nut mixture which is 25% cashews? 1 solutions Answer 244965 by Fombitz(13828)   on 2010-09-13 07:50:01 (Show Source): You can put this solution on YOUR website! Let A be the amount of the 10% cashew mixture, B the amount of the 100% cashew mixture. 1. . . . 2. Subtract eq. 1 from eq. 2, Then from eq. 1, . . . You need 5 kg of the 10% mixture and 1 kg of 100% mixture.

Percentage-and-ratio-word-problems/342239: Solve for Vo. (distance an object falls) AND Solve for w(surface area of a rectangular box) S= 2(lw + hw +hl) 1 solutions Answer 244927 by Fombitz(13828)   on 2010-09-12 23:16:56 (Show Source): You can put this solution on YOUR website! . . .

Graphs/342194: how do find the slope intercept of a graph to put it inot slope form..? 1 solutions Answer 244925 by Fombitz(13828)   on 2010-09-12 23:13:14 (Show Source): You can put this solution on YOUR website! Can you reword your question and repost?

Distributive-associative-commutative-properties/342201: solve for x when x(y+2)=10 1 solutions Answer 244924 by Fombitz(13828)   on 2010-09-12 23:12:20 (Show Source): You can put this solution on YOUR website!

Coordinate-system/342218: how to find the x and y intercept of y=(x+3)^2? 1 solutions Answer 244923 by Fombitz(13828)   on 2010-09-12 23:11:45 (Show Source): You can put this solution on YOUR website! To solve for y-intercepts, set . (0,9) . . . To solve for x-interecpts, set . (-3,0)

Graphs/342202: parallel to de line y=2x; containing the point (-1,2) find the equation of the line 1 solutions Answer 244922 by Fombitz(13828)   on 2010-09-12 23:10:07 (Show Source): You can put this solution on YOUR website! Parallel lines have identical slopes. Use the point slope form of a line,

Rational-functions/342252: I am given (-3, 2k) and (k,6). The slope = 1. how do i find k? thanks 1 solutions Answer 244921 by Fombitz(13828)   on 2010-09-12 23:07:59 (Show Source): You can put this solution on YOUR website! Use the formula for slope, Complete this problem to get .

Exponential-and-logarithmic-functions/342220: Please help me solve this question. I need to find X (the little x is a multiply sign). Can you show working out so i can learn please. 2x(0.1)^(X+1) = 25 Thank you 1 solutions Answer 244919 by Fombitz(13828)   on 2010-09-12 23:06:27 (Show Source): You can put this solution on YOUR website!

Equations/342224: xyz=20 find the value of (4z)(x/2)(6y) 1 solutions Answer 244918 by Fombitz(13828)   on 2010-09-12 23:03:28 (Show Source): You can put this solution on YOUR website!

Equations/342244: x+6=-2x+6 1 solutions Answer 244916 by Fombitz(13828)   on 2010-09-12 23:01:38 (Show Source): You can put this solution on YOUR website!

test/341855: Need some help to make sure I have worked this problem correctly please, Simplify by removing factors of 1 8z - 32 4-z I figured z-8 and I am not sure if this is correct. Thank you. 1 solutions Answer 244754 by Fombitz(13828)   on 2010-09-11 23:51:38 (Show Source): You can put this solution on YOUR website!

test/341857: Need some help to make sure I have worked this problem correctly please, Add and simplify if possible 8w + w w^2 - 1 w - 1 This is what I came up with and not sure if is correct? w(w+9) (w-1)(w+1) Thank you. 1 solutions Answer 244753 by Fombitz(13828)   on 2010-09-11 23:50:15 (Show Source): You can put this solution on YOUR website! Yes, is correct. Good work!

Radicals/341839: the cubed root of (2x+3) + 5= 2. I was told the answer is -15, but can't figure out how to get there. This is what I have tried. (2x+3)^3+5^3=2^3. Put both sides to the 3rd power to undo the cubed root. 8x^3+125=8. Simplified. 8x^3= -117 Subtract 125 from both sides. x^3= -117/8 Divide both sides by 8. x^3= -14.625 x= cubed root of (-14.625) x= i(2.445) As you can tell I'm doing something totally wrong because I am WAY off. 1 solutions Answer 244752 by Fombitz(13828)   on 2010-09-11 23:48:48 (Show Source): You can put this solution on YOUR website! No,no,no. If and you cube both sides, you get . You can't just cube the individual terms, you're missing cross terms. . . . Now cube both sides,

logarithm/341784: use the exponential growth model A=A_0e^kt to show that the time it takes a population to double(to grow from A_0 to 2A_0) is given by t=ln2/k. They do not give the rate of growth so I can not figure this out. Help PLEASE! 1 solutions Answer 244751 by Fombitz(13828)   on 2010-09-11 23:45:03 (Show Source): You can put this solution on YOUR website! . Find when . .

Equations/341820: 1/x+2 - 1/x+3 Give in form of f(x) / g(x) 1 solutions Answer 244750 by Fombitz(13828)   on 2010-09-11 23:41:22 (Show Source): You can put this solution on YOUR website!

Polynomials-and-rational-expressions/341793: 3a+3b ______ a+b 1 solutions Answer 244749 by Fombitz(13828)   on 2010-09-11 23:38:30 (Show Source): You can put this solution on YOUR website!

Expressions-with-variables/341787: tx-4x=3t you have to solve for x but how do you do it with two x's 1 solutions Answer 244748 by Fombitz(13828)   on 2010-09-11 23:37:16 (Show Source): You can put this solution on YOUR website! Use the distributive property,

Quadratic_Equations/341846: Determine the nature of the solutions of the equation. 2t^2-7t=0 Are there 2 imanginary solutions, 2 real solutions, or 1 real solution? 1 solutions Answer 244747 by Fombitz(13828)   on 2010-09-11 23:36:25 (Show Source): You can put this solution on YOUR website! Use the discriminant. . . . Since , there are 2 real solutions. Since is a perfect square, the two solutions are rational.

logarithm/341677: I had someone help me but was no clear about the steps so I was wondering if anyone could help! Thank you! log2√x^2-4=1 1 solutions Answer 244695 by Fombitz(13828)   on 2010-09-11 18:29:07 (Show Source): You can put this solution on YOUR website!

Systems-of-equations/341698: y=x^2+4x-3 y=5x+3 1 solutions Answer 244694 by Fombitz(13828)   on 2010-09-11 18:25:43 (Show Source): You can put this solution on YOUR website! 1. 2. Two solutions: . . . . . . Now that you have the x values, use either equation to solve for the corresponding y-values. . . . Graphical verification . . .

Quadratic_Equations/341739: I need to solve this problem in quadratic form. x^2/5 -5x^1/4-3=0 1 solutions Answer 244692 by Fombitz(13828)   on 2010-09-11 18:20:49 (Show Source): You can put this solution on YOUR website! Are you sure the second exponent isn't ? If not, it can't be solved as a quadratic equation.

logarithm/341723: solve. where appropriate, include approximations to the nearest thousandth. if no solution exsits, state this thank you for your help 1 solutions Answer 244690 by Fombitz(13828)   on 2010-09-11 18:19:41 (Show Source): You can put this solution on YOUR website!

Angles/341735: if two angles are supplementary and x is the measure of one angle, what is the measure of the other in terms of x? 1 solutions Answer 244688 by Fombitz(13828)   on 2010-09-11 18:17:45 (Show Source): You can put this solution on YOUR website!

Equations/341732: 2 + 3x / 4 + x = 10 1 solutions Answer 244687 by Fombitz(13828)   on 2010-09-11 18:16:36 (Show Source): You can put this solution on YOUR website!

test/341766: Can you please explain how to evaluate the expression for the given value of the variable. N cubed when n equals two over three. 1 solutions Answer 244686 by Fombitz(13828)   on 2010-09-11 18:15:02 (Show Source): You can put this solution on YOUR website!

Problems-with-consecutive-odd-even-integers/341765: please please help me asap the person that helps me with this one question will be the one who helped me get my diploma because this question is the last one i need answered but i need help because i keep getting -3.2 but i know its wrong because of when i check it please help!!!! use the proportions below to solve for the variables. check your work. a-6/a+15=2a/2a+6 1 solutions Answer 244685 by Fombitz(13828)   on 2010-09-11 18:14:23 (Show Source): You can put this solution on YOUR website! DUPLICATE See Question 341729.

Problems-with-consecutive-odd-even-integers/341729: a-6/a+15=2a/2a+6 use the proportions below to solve for the variables. check your work. 1 solutions Answer 244684 by Fombitz(13828)   on 2010-09-11 18:12:16 (Show Source): You can put this solution on YOUR website! Simplify first. Multiply both sides by .

Points-lines-and-rays/341693: Find the value of each variable and the measure of each labeled angle: There are two lines that cross (like an X) The top is: (2x)degrees The left is: (4y)degrees The right is: (x + y + 10) degrees I tried to solve for x or y, but couldn't. 1 solutions Answer 244682 by Fombitz(13828)   on 2010-09-11 18:05:38 (Show Source): You can put this solution on YOUR website! The right and left angle equal each other. The top and bottom angles equal each other. The sum of all 4 angles equals 360. 1. . . . 2. Add eq. 1 and eq. 2, Then from eq. 1,

Problems-with-consecutive-odd-even-integers/341617: How many integers in the set of all integers from 1 to 100, inclusive, are not the square of an integer? 1 solutions Answer 244627 by Fombitz(13828)   on 2010-09-11 08:48:43 (Show Source): You can put this solution on YOUR website! Let's work backwards. Find the ones that are. That makes . From to , there are numbers. So of them are not squares of an integer.

Quadratic_Equations/341595: I need help solving x^2+20x=6 I know the formula should be x^2+bx but I need help understanding how to complete the square. 1 solutions Answer 244626 by Fombitz(13828)   on 2010-09-11 08:46:08 (Show Source): You can put this solution on YOUR website! To complete the square, take of the x-coefficient(), square it, and add it to both sides.