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# Recent problems solved by 'Alan3354'

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 Money_Word_Problems/709524: how much money must be deposited now in an account paying 8% annual interest, compounded quarterly, to have a balance of \$1000 after 10 years1 solutions Answer 436630 by Alan3354(30965)   on 2013-02-02 17:04:48 (Show Source): You can put this solution on YOUR website!how much money must be deposited now in an account paying 8% annual interest, compounded quarterly, to have a balance of \$1000 after 10 years ----------------- 8% annual = 2% per quarter 10 yrs = 40 1/4's -------------- FV = PV*1.02^n 1000 = PV*1.02^40 PV = 1000/(1.02^40) PV =~ \$452.89
 Square-cubic-other-roots/709518: x/16=400/201 solutions Answer 436624 by Alan3354(30965)   on 2013-02-02 16:52:22 (Show Source): You can put this solution on YOUR website!x/16=400/20 ---------- Do you have a question?
 Complex_Numbers/709511: x^3-125 1 solutions Answer 436623 by Alan3354(30965)   on 2013-02-02 16:50:48 (Show Source): You can put this solution on YOUR website!x^3-125 ---------- What about it?
 Expressions-with-variables/709521: How am I suppose to answer this x=12y-14 3y+2x=26 This is using substitution or elimination 1 solutions Answer 436621 by Alan3354(30965)   on 2013-02-02 16:48:38 (Show Source): You can put this solution on YOUR website!How am I suppose to answer this You're not supposed to answer it, it's not a question. --------- The reference to substitution or elimination implies that you're expected to solve the system for x & y. -------- You should say that - "How do I solve the system for x & y?" Knowing what you want to do and expressing it is a big step toward doing it. ================================ x=12y-14 3y+2x=26 ---------- x -12y = -14 2x +3y = 26 -- --------- Multiply the 1st eqn by 2, then subtract. 2x -24y = -28 2x + 3y = 26 --------------- Subtract -27y = -54 y = 2 ========= Sub for y in any equation and solve for x
 Age_Word_Problems/709436: pete is 14 years old and his mother is 39 in how many years will petes mother be exactly twice as old as pete1 solutions Answer 436575 by Alan3354(30965)   on 2013-02-02 09:52:18 (Show Source): You can put this solution on YOUR website!pete is 14 years old and his mother is 39 in how many years will petes mother be exactly twice as old as pete --------------------- The age difference is 25 yrs --> when he's 25
 percentage/709363: how do you divide 2340 into 285001 solutions Answer 436568 by Alan3354(30965)   on 2013-02-02 08:42:52 (Show Source): You can put this solution on YOUR website! how do you divide 2340 into 28500 ----------- With a calculator, or pencil and paper.
 Trigonometry-basics/709425: Sin(x)=29/4 what is x? 1 solutions Answer 436567 by Alan3354(30965)   on 2013-02-02 08:39:59 (Show Source): You can put this solution on YOUR website!Sin(x)=29/4 what is x? ------------------ There's no real number solution for x. -1 <= sin(x) <= 1
 Numeric_Fractions/709398: (7t-3)=2(t=1)+41 solutions Answer 436564 by Alan3354(30965)   on 2013-02-02 07:59:14 (Show Source): You can put this solution on YOUR website!(7t-3)=2(t=1)+4 ----------------- Too many equal signs.
 Volume/709383: Does someone want to tackle this problem? I've tryed the volume formula, just dont know what to do with it. The volume of earth is 6.7 times that of mars, find the diameter of mars. Thankyou sincerely in advance.1 solutions Answer 436544 by Alan3354(30965)   on 2013-02-01 23:46:48 (Show Source): You can put this solution on YOUR website!The volume of earth is 6.7 times that of mars, find the diameter of mars. ------------------ Volume is a function of the cube of the diameter. eg, dia*2 --> volume*2^3 = volume*8 ============= You didn't give Earth's diameter, I'll use 8000 miles. --- Mars' diameter = =~ 4244 miles
 Graphs/709353: Can you please solve this algebra problem? and show me the detail for it: 2x+4 = 8y1 solutions Answer 436535 by Alan3354(30965)   on 2013-02-01 20:49:09 (Show Source): You can put this solution on YOUR website!Can you please solve this algebra problem? and show me the detail for it: 2x+4 = 8y ------------ Solve for what?
 Triangles/709344: In triangle ABC, triangle C is a right angle. Find the remaining sides and angles. Round your answer to the nearest tenth. a=3, c=191 solutions Answer 436522 by Alan3354(30965)   on 2013-02-01 20:01:22 (Show Source): You can put this solution on YOUR website!In triangle ABC, triangle C is a right angle. Find the remaining sides and angles. Round your answer to the nearest tenth. a=3, c=19 ------------- b =~ 18.8 ============= sin(A) = 3/19 ------------ B = 90 - A
 Travel_Word_Problems/709250: distance a plane can travel in 30 seconds1 solutions Answer 436511 by Alan3354(30965)   on 2013-02-01 17:43:16 (Show Source): You can put this solution on YOUR website!distance a plane can travel in 30 seconds -------------- Depends on its speed. If it's parked, distance = 0
 �t�e�s�t/709300: Solve a) x^3-x^2-4x+4=0 b) x^3-4x^2+x+6=0 c) x^3-x^2-3x+6=0 d) x^4-3x^3-2x^2+12x-8=0 Can you please help me? Thanks so much in advance:)1 solutions Answer 436510 by Alan3354(30965)   on 2013-02-01 17:41:08 (Show Source): You can put this solution on YOUR website!duplicate
 Reduction-of-unit-multipliers/709316: what is the distance of 2/10 kilometers 1 solutions Answer 436509 by Alan3354(30965)   on 2013-02-01 17:39:26 (Show Source): You can put this solution on YOUR website!what is the distance of 2/10 kilometers ------------- ? That is the distance. Two tenths of kilometer. ========================= What is the distance of 2 feet? It's 2 feet.
 �t�e�s�t/709299: Solve a) x^3-x^2-4x+4=0 b) x^3-4x^2+x+6=0 c) x^3-x^2-3x+6=0 d) x^4-3x^3-2x^2+12x-8=0 Can you please help me with a detailed explanation and show me how to do it? Thanks so much in advance1 solutions Answer 436508 by Alan3354(30965)   on 2013-02-01 17:38:35 (Show Source): You can put this solution on YOUR website!Solve a) x^3-x^2-4x+4=0 b) x^3-4x^2+x+6=0 c) x^3-x^2-3x+6=0 d) x^4-3x^3-2x^2+12x-8=0 Can you please help me with a detailed explanation and show me how to do it? ----------------- a) x^3-x^2-4x+4=0 Try the factors of 4, plus and minus. 1, 2 & 4 ---------- Sub 1 for x: 1 - 1 - 4 + 4 = 0 + 1 is a zero --> (x-1) is a factor. Divide by x-1, then factor what's left, if possible.
 Equations/709307: How do i write a equation for this word problem .....a total of 25boys and girls want to join club 1 solutions Answer 436507 by Alan3354(30965)   on 2013-02-01 17:34:08 (Show Source): You can put this solution on YOUR website!How do i write a equation for this word problem .....a total of 25boys and girls want to join club -------------- How is that a problem? What are you trying to find?
 Miscellaneous_Word_Problems/709267: A student gains 1.4 in two weeks. How many grams did he gain? 1 solutions Answer 436493 by Alan3354(30965)   on 2013-02-01 16:21:14 (Show Source): You can put this solution on YOUR website!A student gains 1.4 in two weeks. How many grams did he gain? ------------- 1.4 what?
 Triangles/709236: what is the missing formula for each of the right triangles below. In each example 0= angle, O= opposite side, A=adjacent side, and H=hypotenuse. sin=0=? O=8 H=161 solutions Answer 436460 by Alan3354(30965)   on 2013-02-01 10:44:59 (Show Source): You can put this solution on YOUR website!what is the missing formula for each of the right triangles below. In each example 0= angle, O= opposite side, A=adjacent side, and H=hypotenuse. sin=0=? O=8 H=16 =================== sine = side opposite/hypotenuse
 Geometry_Word_Problems/709076: show that the quadriateral with the give vertics is a parallelogram 1 solutions Answer 436380 by Alan3354(30965)   on 2013-01-31 21:55:50 (Show Source): You can put this solution on YOUR website!show that the quadriateral with the give vertics is a parallelogram ------------ No data.
 Triangles/709096: P=12 , A=3 , C=5 what is B?1 solutions Answer 436373 by Alan3354(30965)   on 2013-01-31 21:41:26 (Show Source): You can put this solution on YOUR website!P=12 , A=3 , C=5 what is B? ------------- No idea. Is this a triangle, or something else? What does P mean?
 Linear-systems/709077: X-y=3 X+y=51 solutions Answer 436372 by Alan3354(30965)   on 2013-01-31 21:40:23 (Show Source): You can put this solution on YOUR website!X-y=3 X+y=5 --------- Add
 test/708998: What is the width of a regulation basketball courts? I 94ft. A400ft1 solutions Answer 436349 by Alan3354(30965)   on 2013-01-31 18:30:36 (Show Source): You can put this solution on YOUR website!What is the width of a regulation basketball courts? I 94ft. A400ft ------------ I don't know. It's not a math problem, no way to figure it out. Look it up.
 �t�e�s�t/708994: what is the answer for 1/3 + 1/9? 1 solutions Answer 436348 by Alan3354(30965)   on 2013-01-31 18:29:29 (Show Source): You can put this solution on YOUR website!what is the answer for 1/3 + 1/9? ---------- Depends on the question. ----------- If you want the sum of the 2 fractions: 1/3 + 1/9 = 3/9 + 1/9 = 4/9
 Graphs/708918: I want to fuck u 1 solutions Answer 436346 by Alan3354(30965)   on 2013-01-31 18:23:50 (Show Source): You can put this solution on YOUR website!I want to fuck u ---------------- Sorry. "You can't always get what you want..." - Rolling Stones =========== Ok, seriously, with a comedic wit like yours, your future is assured. It's hard for me to comprehend how you can be so clever.
 test/709001: Y=3x1 solutions Answer 436345 by Alan3354(30965)   on 2013-01-31 18:22:13 (Show Source): You can put this solution on YOUR website!Y=3x -------- Thx for letting us know.
 Polygons/708508: The sum of the measures of the exterior angles of a 30-gon is ___ 360/n 121 solutions Answer 436153 by Alan3354(30965)   on 2013-01-30 20:27:59 (Show Source): You can put this solution on YOUR website!The sum of the measures of the exterior angles of a 30-gon is 360 degs. That's true for all polygons.
 Numeric_Fractions/708569: what is 2(9n-1)=7(n+6)=-601 solutions Answer 436151 by Alan3354(30965)   on 2013-01-30 20:26:23 (Show Source): You can put this solution on YOUR website!what is 2(9n-1)=7(n+6)=-60 ----------------- I'm not sure. It would be an equation, but is has an extra equal sign.
 logarithm/708538: Please help with equation 32^x-2 = 8^x I know this is Log base 32 8^x = x-2, but now I'm stuck Thank you1 solutions Answer 436148 by Alan3354(30965)   on 2013-01-30 20:25:01 (Show Source): You can put this solution on YOUR website!32^x-2 = 8^x ---------- (x-2)*log(32) = x*log(8) That's the hard way. ----------------------------- 32^x-2 = 8^x 5(x-2) = 3x etc
 Numeric_Fractions/708562: 1 solutions Answer 436146 by Alan3354(30965)   on 2013-01-30 20:22:24 (Show Source): You can put this solution on YOUR website!5-2/3= 15/3 - 2/3 = 13/3
 Linear_Equations_And_Systems_Word_Problems/708575: PLEASE HELP solve the system linear equations. Solve for variables x and y: 4x-3y=4 2x+y=-8 Please show me how to do this problem.1 solutions Answer 436145 by Alan3354(30965)   on 2013-01-30 20:21:18 (Show Source): You can put this solution on YOUR website!4x-3y=4 2x+y=-8 Please show me how to do this problem. ================= Multiply the 2nd equation by 2, then subtract. ---- Or, multiply it by 3, then add.