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

Quadratic_Equations/342464: Determine the nature of the solutions of the equation. x^2-14x+49=0 What does the equation have? One real solution, two non-real solutions, or two real solutions 1 solutions Answer 245125 by Fombitz(13828)   on 2010-09-13 16:00:50 (Show Source): You can put this solution on YOUR website! Use the discriminant. There is one real solution (a double root). . . .

Inequalities/341639: Hello. Can you please help me with this problem? Write an inequality for which the solution is all real numbers in the form ax+b > c(x+d) Explain how you know this. Thank you! 1 solutions Answer 245123 by Fombitz(13828)   on 2010-09-13 15:58:45 (Show Source): You can put this solution on YOUR website! If , then If , then If , and , then the solution is all . If , and , then there is no solution.

Graphs/341601: graph the equation and identify the y intercept x+3y=9 1 solutions Answer 245122 by Fombitz(13828)   on 2010-09-13 15:54:26 (Show Source): You can put this solution on YOUR website! Set and solve for . (,) . . . Plot that point. . . . . . . Convert the equation to slope-intercept form, Use another x value. Let , (,) Plot that point also. . . . . . . Then connect the two points with a line. . . . . . . . . .

Geometry_Word_Problems/342295: A rectangular solid has a square base. The volume is 360 cubic inches and the height is 10 inches. What is the perimeter of the base? (a) 24 (b) 36 (c) 40 (d) 60 (e) 100 1 solutions Answer 245120 by Fombitz(13828)   on 2010-09-13 15:48:38 (Show Source): You can put this solution on YOUR website! For a square, the perimeter is, inches.

test/342455: Your question goes here. Write clearly! We are not mind readers, so be sure to ask a question that we can understand. 1 solutions Answer 245119 by Fombitz(13828)   on 2010-09-13 15:47:20 (Show Source): You can put this solution on YOUR website! True!

Expressions-with-variables/342453: A=1/2bh, solve for h 1 solutions Answer 245118 by Fombitz(13828)   on 2010-09-13 15:46:59 (Show Source): You can put this solution on YOUR website!

Mixture_Word_Problems/342400: How many gallons of a 3% salt solution must be mixed with 20 gallons of a 9% solution to obtain a 5% solution? 1 solutions Answer 245117 by Fombitz(13828)   on 2010-09-13 15:46:08 (Show Source): You can put this solution on YOUR website! Let A be the amount of 3% solution. gallons

Distributive-associative-commutative-properties/342388: 1) 9/2709 2) 7/21021 3) 3/606 4) 9/4500 * Can you please show the work so I know how its done. 1 solutions Answer 245116 by Fombitz(13828)   on 2010-09-13 15:43:59 (Show Source): You can put this solution on YOUR website! I'll show you one. The others are done exactly the same way.

Geometry_Word_Problems/342452: point j is between h and k on hk. use the given information to write an equation in terms of x. solve the equation. then find hj and jk. hj=2x jk=3x kh=25 1 solutions Answer 245114 by Fombitz(13828)   on 2010-09-13 15:42:13 (Show Source): You can put this solution on YOUR website! Substitute, . . .

Numbers_Word_Problems/342356: A piggy bank has 70 coins which has only nickels and dimes. The total value in the bank is $5.55. How many nickels and how many dimes? 1 solutions Answer 245112 by Fombitz(13828)   on 2010-09-13 15:41:02 (Show Source): You can put this solution on YOUR website! Total number of coins, 1. Total value of the coins, 2. Subtract eq. 1 from eq. 2, Then from eq. 1, There are nickels and dimes.

Quadratic_Equations/342387: x+4/x+2=7/x+2 + 24/x^2-4 Find all the real solutions 1 solutions Answer 245111 by Fombitz(13828)   on 2010-09-13 15:38:07 (Show Source): You can put this solution on YOUR website! First simpify, Use the common denominator, Find the zeros of the numerator using the quadratic formula,

Rectangles/342334: The length of a rectangular piece of land is 60 yards more than two times its width. The perimeter is 540 yards.Find the dimensions? 1 solutions Answer 245107 by Fombitz(13828)   on 2010-09-13 15:26:45 (Show Source): You can put this solution on YOUR website! The perimeter of a rectangle is, Substituting from the first equation, yds. Then from the first equation, yds.

Linear-systems/342440: which equation represents a straight line 4x^2+9y^2=25, 2xy+6=15y, 3y-2x=7 1 solutions Answer 245105 by Fombitz(13828)   on 2010-09-13 15:24:27 (Show Source): You can put this solution on YOUR website! is a linear equation.

Radicals/342424: how do i find the domain of: f(x) = x+[3/(5-x)] 1 solutions Answer 245097 by Fombitz(13828)   on 2010-09-13 14:59:56 (Show Source): You can put this solution on YOUR website! The domain is all x which make f(x) defined. This function is undefined when you have a division by zero. This happens when So the domain is all x except In interval notation that would be (,)U(,)

test/342429: The first 4 nth terms of 2n (squared) + 3n 1 solutions Answer 245096 by Fombitz(13828)   on 2010-09-13 14:57:46 (Show Source): You can put this solution on YOUR website! I'll do the first two. You finish it. , , Do it the same way.

Expressions-with-variables/342401: how do I solve this equation ? 2-3x/5 < x+2, 1 solutions Answer 245085 by Fombitz(13828)   on 2010-09-13 14:32:38 (Show Source): You can put this solution on YOUR website!

Graphs/342321: Determine the coordinates of the x-intercept of 3x – 4y = 24. 1 solutions Answer 245082 by Fombitz(13828)   on 2010-09-13 14:31:10 (Show Source): You can put this solution on YOUR website! Set and solve for . . . . (,)

test/342411: Find the ratio of the first two numbers to the second number and simplify: 4.8 to 6.4 1 solutions Answer 245080 by Fombitz(13828)   on 2010-09-13 14:29:40 (Show Source): You can put this solution on YOUR website!

Graphs/342371: How would you graph y = x^2 + 2 1 solutions Answer 245034 by Fombitz(13828)   on 2010-09-13 11:18:28 (Show Source): You can put this solution on YOUR website! Choose a range of x-values. Calculate the y values. Plot the x,y pairs and connect them with a smooth curve. , , , , , , , . . .

Linear_Algebra/342266: the equation 5x^2+14x+1=0 has two solutions A and B where a1 solutions Answer 245031 by Fombitz(13828)   on 2010-09-13 11:06:07 (Show Source): You can put this solution on YOUR website! Have you tried the quadratic formula? It works for any quadratic equation. . . . So that

Problems-with-consecutive-odd-even-integers/342368: Five consecutive even integers starting with -6 1 solutions Answer 245029 by Fombitz(13828)   on 2010-09-13 11:02:28 (Show Source): You can put this solution on YOUR website! -6 -4 -2 0 2

Systems-of-equations/342265: solve each system of equations 2x-y=12 x+3y=13 1 solutions Answer 245028 by Fombitz(13828)   on 2010-09-13 11:02:05 (Show Source): You can put this solution on YOUR website! From eq. 1, Substitute into eq. 2, Then from eq. 1,

Numeric_Fractions/342362: Three-fourths of what number is 10,500? 1 solutions Answer 245023 by Fombitz(13828)   on 2010-09-13 10:44:47 (Show Source): You can put this solution on YOUR website!

Linear_Equations_And_Systems_Word_Problems/342360: please help me solve this: A father is four times as old as his son. In six years time,their combined ages will be 57. How old is the father now? 1 solutions Answer 245022 by Fombitz(13828)   on 2010-09-13 10:43:27 (Show Source): You can put this solution on YOUR website! Let the Father's age be , the son's . In 6 years their ages are and . 1. . . . 2. Substitute eq. 1 into eq. 2, years old Then from eq. 1, years old

Equations/342328: what is the LCD of 2v^6w^9 and 4u^4v^9w^9 1 solutions Answer 245020 by Fombitz(13828)   on 2010-09-13 10:40:41 (Show Source): You can put this solution on YOUR website!

Linear_Equations_And_Systems_Word_Problems/342358: Please help me work this out: The sum of 3 numbers P,T and K is 129. T is more than P and P is less than K. Find the numbers. 1 solutions Answer 245019 by Fombitz(13828)   on 2010-09-13 10:39:02 (Show Source): You can put this solution on YOUR website! You don't have enough information to solve for P,T, and K.

Linear_Equations_And_Systems_Word_Problems/342357: please help me with the follwing question,please can you help me work it out: If i multiply a certain number by 5,i get the same answer as when i subtract the number from 48. What is the number? 1 solutions Answer 245018 by Fombitz(13828)   on 2010-09-13 10:37:47 (Show Source): You can put this solution on YOUR website! Let's call the number . Translate the words into expressions with "multiply a certain number by 5" "subtract the number from 48" The two values are equal. Add to both sides. Divide both sides by

Word_Problems_With_Coins/342344: A stack of pennies and dimes has a total value of $2.31. How many dimes are in the stack if there are twice as many dimes as pennies? 1 solutions Answer 245014 by Fombitz(13828)   on 2010-09-13 10:14:16 (Show Source): You can put this solution on YOUR website! Let D be the number of dimes, P the number of pennies. . . . . . . Then from the first equation,

Rectangles/342257: If the area of a rectangle is 810units^2, what are the dimensions of the rectangle? 1 solutions Answer 245013 by Fombitz(13828)   on 2010-09-13 10:12:05 (Show Source): You can put this solution on YOUR website! The dimensions are where . You haven't provided enough information and have multiple possible answers. 1x810=810 6x135=810 9x90=810 etc.

Travel_Word_Problems/342235: Kevin drove 320 miles to a mountain resort. His return trip took 20 minutes longer because his speed returning was 4 miles per hour slower than his speed going. 1 solutions Answer 245012 by Fombitz(13828)   on 2010-09-13 10:09:53 (Show Source): You can put this solution on YOUR website! Rate*Time=Distance . . . . . . . . . OK, so what's the question??

absolute-value/342250: |(x+h)^2-x^2|<3h^2, where h>0 Solve the inequality and specify the answer in interval notation in terms of h 1 solutions Answer 245011 by Fombitz(13828)   on 2010-09-13 10:05:43 (Show Source): You can put this solution on YOUR website! and and and and