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

Linear-equations/333987: determine the x- and y- intercepts (if any) of the given equation. SHOW WORK. Then plot the intercepts and graph I do not understand how to get the intercepts, I do know how to plot it on a graph though so I think I only need help with the first half of the question. Thank you 1 solutions Answer 240242 by Fombitz(13828)   on 2010-08-26 09:33:31 (Show Source): You can put this solution on YOUR website! To find the x-intercept, set y=0 and solve for x. (-1/30,0) . . . To find the y-intercept, set x=0 and solve for y. Division by zero is undefined so there is no y-intercept. . . .

Rational-functions/333960: Write a quadatic equation having the given numbers as solutions, -8 and -1 The quadratic equeation is___?__ =0 1 solutions Answer 240240 by Fombitz(13828)   on 2010-08-26 09:20:36 (Show Source): You can put this solution on YOUR website!

Miscellaneous_Word_Problems/335212: License Plate numbers In a certain state,each automobile license plate number consists of two letters followed by a four-digit number. How many distinct license plate numbers can be formed? 1 solutions Answer 240239 by Fombitz(13828)   on 2010-08-26 09:18:09 (Show Source): You can put this solution on YOUR website! There are 26 letters and 10 digits available. . . .

test/335095: A trip of 1080 kms. Part way in car the avged 60 km/hr remainder on train travelling 100 km/hr. Entire trip was 12 hour. What distance travelled in each mode? 1 solutions Answer 240238 by Fombitz(13828)   on 2010-08-26 09:17:05 (Show Source): You can put this solution on YOUR website! Rate*Time=Distance . . . 1. . . . 2. From eq. 1, Substitute into eq. 2, km . . . km

Graphs/335079: 3x-y=5 5x-2y=11 solve by substitution method 1 solutions Answer 240237 by Fombitz(13828)   on 2010-08-26 09:10:07 (Show Source): You can put this solution on YOUR website! 1. 2. From eq. 1, Substitute into eq. 2, Then from eq. 1,

Evaluation_Word_Problems/335081: A change purse contains 20 coins consisting of nickels and dimes and having a total value of $1.40. How many nickels are there? 1 solutions Answer 240236 by Fombitz(13828)   on 2010-08-26 09:07:17 (Show Source): You can put this solution on YOUR website! Let N be the number of nickels, D the number of dimes. 1. 2. From eq. 1, Substitute into eq. 2, . . . There are 12 nickels in the purse.

Polynomials-and-rational-expressions/335083: Find the least common multiple of the two expressions 6w^9x^8 and 10u^8w^4x^3 1 solutions Answer 240235 by Fombitz(13828)   on 2010-08-26 09:05:28 (Show Source): You can put this solution on YOUR website! . . .

Average/335092: the average of 3 numbers is 16. if one of the numbers is removed the avreage of the remaining 2 numbers is 15. which is greater: column A=10, column B=the number that was removed.. please help 1 solutions Answer 240234 by Fombitz(13828)   on 2010-08-26 09:04:15 (Show Source): You can put this solution on YOUR website! Let the three numbers be A, B, and C . . . Remove value . . . . . . Column Column Column is greater than column .

Numeric_Fractions/335087: how to simplify this expression 2[(8-4) to the power of 5 divided by 8 1 solutions Answer 240233 by Fombitz(13828)   on 2010-08-26 09:01:06 (Show Source): You can put this solution on YOUR website!

Numbers_Word_Problems/335088: three times a first number is decreased by a second number is 1. the first number increased by twice the second number is 12. what are the numbers? 1 solutions Answer 240232 by Fombitz(13828)   on 2010-08-26 08:58:28 (Show Source): You can put this solution on YOUR website! Let the first number be A, second number B. . . . "three times a first number is decreased by a second number is 1" 1. . . . "the first number increased by twice the second number is 12" 2. From eq. 1, Substitute into eq. 2 for B. Now go back and solve for B.

test/335089: I'm stuck: 60% of a number plus a number equals 192..... help!! 1 solutions Answer 240231 by Fombitz(13828)   on 2010-08-26 08:55:21 (Show Source): You can put this solution on YOUR website! Percent means out of 100. Let N be the number, Complete the calculation for the answer.

Quadratic_Equations/335091: ( ((((a)^2)^2)*4a^4) / ((3/2a))^8 ) + (-sqrt(-1)) 1 solutions Answer 240230 by Fombitz(13828)   on 2010-08-26 08:53:50 (Show Source): You can put this solution on YOUR website!

Triangles/335191: One side of a triangle is 1 in. longer than the shortest side and is 1 in. shorter than the longest side. The perimeter is 17 in. Find the measurement of each of the sides of the triangle. 1 solutions Answer 240228 by Fombitz(13828)   on 2010-08-26 08:48:11 (Show Source): You can put this solution on YOUR website! Let A,B,C be the sides from shortest to longest. . . . . . . Substitute the above values and solve for B. . . . . . .

Miscellaneous_Word_Problems/335200: the perimeter of a rectangle is 184inches . The length exceeds the width by 70 inches. Find the length and the width 1 solutions Answer 240227 by Fombitz(13828)   on 2010-08-26 08:44:53 (Show Source): You can put this solution on YOUR website! For a rectangle, . . . Substitute into the perimeter equation, Now use that result to solve for L.

Numbers_Word_Problems/335184: the sum of 2 consecutive odd number is 36.find the product of these 2 number 1 solutions Answer 240226 by Fombitz(13828)   on 2010-08-26 08:43:18 (Show Source): You can put this solution on YOUR website! . . .

Expressions-with-variables/335185: 4n-12 when n=7. 1 solutions Answer 240225 by Fombitz(13828)   on 2010-08-26 08:41:48 (Show Source): You can put this solution on YOUR website! Finish the calculation for the final answer.

Graphs/335178: graph the equation and id the y intercept ; x + 2y = 10 as far as I get is subtract the x from both sides, y=(-1/2x)+5 after that I don't know what steps are next. 1 solutions Answer 240224 by Fombitz(13828)   on 2010-08-26 08:40:33 (Show Source): You can put this solution on YOUR website! The easiest way to graph a line is to use the x and y intercepts since you only need two points to define a line. To find the x-intercept, set y=0 and solve for x. (10,0) Plot that point. . . . . . . To find the y-intercept, set x=0 and solve for y. (0,5) Plot that point. . . . . . . Now connect the points with a line that goes through both of them. . . .

Points-lines-and-rays/335179: How do i find a equation of a line, when the line segment is extended, the original points were (-2,5) , (4,-4) . does not say how long it has been extended. sorry D: 1 solutions Answer 240223 by Fombitz(13828)   on 2010-08-26 08:34:42 (Show Source): You can put this solution on YOUR website! Find the slope using the two points. Now us the point-slope form of a line with either point, . . .

Linear-equations/335174: write the equation of the line parallel to the line 4x-6y= -1 and contains the x-intercept of 3x-2y= 12 1 solutions Answer 240222 by Fombitz(13828)   on 2010-08-26 08:30:43 (Show Source): You can put this solution on YOUR website! First, find the x intercept by setting y=0. (4,0) . . . A parallel line will have the same left hand side as and a different right hand side. Use the x-intercept to find the new right hand side.

Linear-equations/335171: Given the distance between (x,1) and (-2,5). Find the value(s) of x. please leave it in simplest form 1 solutions Answer 240221 by Fombitz(13828)   on 2010-08-26 08:28:37 (Show Source): You can put this solution on YOUR website! Use the distance formula,

Polynomials-and-rational-expressions/335134: Solve for x (rational equation) there should be a line under each a+/- on top and ONE equal sign in middle. 4-a-10 = a^2-2 a+4 = a+4 1 solutions Answer 240220 by Fombitz(13828)   on 2010-08-26 08:25:35 (Show Source): You can put this solution on YOUR website! Do you want to solve for x or for a?

Radicals/335125: Simplify the following radical eqution. (Square root sign)40. 1 solutions Answer 240219 by Fombitz(13828)   on 2010-08-26 08:24:21 (Show Source): You can put this solution on YOUR website!

Human-and-algebraic-language/335187: A lamp is marked with a sale price of 23.80, which is 15% off the regular price. What is the regular price? 1 solutions Answer 240218 by Fombitz(13828)   on 2010-08-26 08:23:22 (Show Source): You can put this solution on YOUR website! The regular price is $28.

Exponents-negative-and-fractional/335204: Raising n^(-p/n) by which of the following will give the result n? a) p^(-p/n) b) n^(n/p) c) p/n d) -n/p I don't understand the question, please help. 1 solutions Answer 240217 by Fombitz(13828)   on 2010-08-26 08:21:46 (Show Source): You can put this solution on YOUR website! Find Z so that raising that expression to the Z power will give a result of n.

Linear-equations/335201: Find the midpoint of the following segment created by these pairs of endpoints: (10,10),(2,2) Thanks 1 solutions Answer 240216 by Fombitz(13828)   on 2010-08-26 08:13:30 (Show Source): You can put this solution on YOUR website! Use the midpoint formula,

Linear-equations/335202: Find an equation of the line having the given slope and containing the given point. m=6/7 (8,-5) 1 solutions Answer 240215 by Fombitz(13828)   on 2010-08-26 08:12:49 (Show Source): You can put this solution on YOUR website! Use the point-slope form of a line, . . .

Triangles/334864: the base of a triangle is 6cm more than the height. if the area of the triangle is 140 sq feet what is the base? 1 solutions Answer 240020 by Fombitz(13828)   on 2010-08-25 16:23:32 (Show Source): You can put this solution on YOUR website! The area of a triangle is, I'm assuming you meant 140 sq. cm. and not 140 sq. feet. . . . Only positive results make sense here, cm cm

Travel_Word_Problems/334945: If a train travels for 4.5 hours at a rate of 40 mph, what is the distance the train will travel? 1 solutions Answer 240018 by Fombitz(13828)   on 2010-08-25 16:19:51 (Show Source): You can put this solution on YOUR website! Rate*Time=Distance . . . Complete the calculation for the answer in miles.

Problems-with-consecutive-odd-even-integers/334954: for an inverse variation does the constant increase decrease or remain the same? 1 solutions Answer 240015 by Fombitz(13828)   on 2010-08-25 16:18:37 (Show Source): You can put this solution on YOUR website! In any variation problem, the constant remains constant (neither increasing nor decreasing),hence the term constant.

absolute-value/334868: solve the absolute value equation. express solution in SET NOTATION 1 solutions Answer 240013 by Fombitz(13828)   on 2010-08-25 16:17:29 (Show Source): You can put this solution on YOUR website! You need to solve two equations. The positive solution: and the negative solution: . . . Positive solution: . . . Negative solution: . . . Graphical verification . . .

Quadratic_Equations/334931: 4x^3 is greater or less than 16x 1 solutions Answer 240006 by Fombitz(13828)   on 2010-08-25 16:03:32 (Show Source): You can put this solution on YOUR website! Depends on the value of x. If , . . . If