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# Recent problems solved by 'Alan3354'

Alan3354 answered: 30973 problems
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 Travel_Word_Problems/503022: a car covered a total distance of 105 km in 1.5 hours.find the average speed in km/ hrs1 solutions Answer 339071 by Alan3354(30993)   on 2011-09-23 09:46:18 (Show Source): You can put this solution on YOUR website!d = r*t r = d/t
 Circles/503051: find the radius of the circle with the points (-8,-9) (-4,-9) (-6,-7) and the center (-6,-9)1 solutions Answer 339070 by Alan3354(30993)   on 2011-09-23 09:43:37 (Show Source): You can put this solution on YOUR website!find the radius of the circle with the points (-8,-9) (-4,-9) (-6,-7) and the center (-6,-9) ---------- These 2 are sufficient: (-6,-7) and the center (-6,-9) Radius = 2
 Polynomials-and-rational-expressions/503041: C(c+2)=0 solve 1 solutions Answer 339064 by Alan3354(30993)   on 2011-09-23 09:16:56 (Show Source): You can put this solution on YOUR website!C(c+2)=0 solve ------------ Either C = 0 or c+2 = 0 c = -2
 test/502913: 1 solutions Answer 339016 by Alan3354(30993)   on 2011-09-22 22:52:19 (Show Source):
 Polynomials-and-rational-expressions/502938: Please help me solve this equation: . I square rooted both sides of the equation but don't know what to do next. Thank you for helping me.1 solutions Answer 339015 by Alan3354(30993)   on 2011-09-22 22:51:58 (Show Source): You can put this solution on YOUR website! Square both sides Square again (t-1)*(t-9) = 0 etc
 Expressions-with-variables/502939: Please help me simplify this expression and justify each step: x - 4(2x + 1)- 3 I am working with the Distributive Property.1 solutions Answer 339014 by Alan3354(30993)   on 2011-09-22 22:48:36 (Show Source): You can put this solution on YOUR website!x - 4(2x + 1)- 3 = x - 4*2x - 4*1 - 3 = x - 8x - 4 - 3 = -7x - 7
 Average/502873: Hi, I need help please.. I tried to solve it but am stuck.Raquel is mixing lemon-lime soda and a fruit juice blend that is 45% juice. If she uses 3 quarts of soda, how many quarts of fruit juice must be added to produce punch that is 30% juice? LLS + FJ = 45% J, (3)LLS + (x)FJ = 30% J1 solutions Answer 339013 by Alan3354(30993)   on 2011-09-22 22:47:33 (Show Source): You can put this solution on YOUR website!duplicate
 Average/502875: Hi, I need help please. Raquel is mixing lemon-lime soda and a fruit juice blend that is 45% juice. If she uses 3 quarts of soda, how many quarts of fruit juice must be added to produce punch that is 30% juice? LLS + FJ = 45% J, (3)LLS + (x)FJ = 30% J Thank U very much!1 solutions Answer 339012 by Alan3354(30993)   on 2011-09-22 22:46:16 (Show Source): You can put this solution on YOUR website!duplicate
 Average/502870: Hi, I need help please.. I tried to solve it but am stuck. Raquel is mixing lemon-lime soda and a fruit juice blend that is 45% juice. If she uses 3 quarts of soda, how many quarts of fruit juice must be added to produce punch that is 30% juice? LLS + FJ = 45% J (3)LLS + (x)FJ = 30% J1 solutions Answer 339011 by Alan3354(30993)   on 2011-09-22 22:44:35 (Show Source): You can put this solution on YOUR website!Raquel is mixing lemon-lime soda and a fruit juice blend that is 45% juice. If she uses 3 quarts of soda, how many quarts of fruit juice must be added to produce punch that is 30% juice? ---------------- 3*0 + 0.45j = 0.2*(3 + j) 0.45j = 0.2*(3 + j) 45j = 20*(3 + j) = 60 + 20j 25j = 60 j = 60/25 j = 2.4 quarts
 Equations/502887: a = 0.22 c = 5.4 the problem is 7 + ac does that equal 12.621 solutions Answer 339010 by Alan3354(30993)   on 2011-09-22 22:40:39 (Show Source): You can put this solution on YOUR website!a = 0.22 c = 5.4 the problem is 7 + ac does that equal 12.62 ----------- ac = 0.22*5.4 = 1.188 Adding 7 --> 8.188
 Travel_Word_Problems/502907: How far can a person run in 3 hours if he or she runs at an average velocity of 16km/hr1 solutions Answer 339008 by Alan3354(30993)   on 2011-09-22 22:38:13 (Show Source): You can put this solution on YOUR website!d = r*t
 Graphs/502919: 2x + 3y = 2 2x + 3y = 3 Are these lines parallel, perpendicular, or neither. I think they are neither but I cannot find anything close to this as example to even try to find the answer. I tried to solve like this: First equation x = 0 2(0) + 3y = 2 3y = 2 y = 2/3 (0, 2/3) y = 0 2x +3(0) = 2 2x = 2 x = 1 (1, 0) Second Equation x = 0 2(0) + 3y = 3 3y = 3 y = 3 (0,1) y=0 2x + 3(0) = 3 2x = 3 x = 3/2 (3/2, 0)1 solutions Answer 339005 by Alan3354(30993)   on 2011-09-22 22:26:35 (Show Source): You can put this solution on YOUR website!2x + 3y = 2 2x + 3y = 3 Are these lines parallel, perpendicular, or neither. ------------------ Find and compare the 2 slopes. Solve both for y: 2x + 3y = 2 --> y = (-2/3)x + 2/3 2x + 3y = 3 --> y = (-2/3)x + 1 ------------- The slope is the coefficient of x, -2/3 for both. The same slope means they're parallel.
 test/502792: On a 2 mile race track, you hike the first mile at 10 mph. At what rate must you hike the second mile to average 20 mph for the entire track?1 solutions Answer 338937 by Alan3354(30993)   on 2011-09-22 19:52:42 (Show Source): You can put this solution on YOUR website!It's a trick question. The time for one mile at 10 mph is the same as the time for 2 miles at 20 mph. It's not possible.
 Volume/502753: find the volume of a cube of zinc with the following dimensions:3.000cm, 3.1cm, 2.99cm1 solutions Answer 338934 by Alan3354(30993)   on 2011-09-22 19:26:32 (Show Source): You can put this solution on YOUR website!It's the product of the 3 dimensions.
 Volume/502758: find the average volume from the following volume readings: 3.00mL, 2.0mL, 2.987mL, and 3.4856mL1 solutions Answer 338933 by Alan3354(30993)   on 2011-09-22 19:19:43 (Show Source): You can put this solution on YOUR website!There are 4 numbers. Add them, divide by 4.
 Polynomials-and-rational-expressions/502745: Perform the indicated division of polynomials by monomials. 10x5 + 20x3 divided by 2x I got the answer 5x^4+10x^2 and was incorrect i'm not sure what I'm doing wrong. I first divided the whole numbers on top by two... then subtract the exponents on top from the one on bottom. 1 solutions Answer 338932 by Alan3354(30993)   on 2011-09-22 19:16:38 (Show Source): You can put this solution on YOUR website!10x5 + 20x3 divided by 2x ------- Who said it's incorrect?
 Travel_Word_Problems/502749: A coach calls a play from the sideline to a player. Assume the distance is 5.5 YARDS. If sound travels at 1080 FEET/second, how long will it take the sound to reach the player?1 solutions Answer 338929 by Alan3354(30993)   on 2011-09-22 19:13:30 (Show Source): You can put this solution on YOUR website!d = r*t 5.5 yards = 16.5 feet t = d/r
 Polynomials-and-rational-expressions/502750: Factor the polynomial completely. 36x^2 + 49 I first tried (6x+7)2 and then (6x+7) (6x+7)... I was incorrect and I'm unsure if i'm doing the problem wrong or writing it incorrectly.1 solutions Answer 338928 by Alan3354(30993)   on 2011-09-22 19:12:35 (Show Source): You can put this solution on YOUR website!That can't be factored with real numbers, --> prime, not factorable.
 Linear-equations/502742: find the equation of the line with y-intercept (0,-3) and the slope of -41 solutions Answer 338927 by Alan3354(30993)   on 2011-09-22 19:10:12 (Show Source): You can put this solution on YOUR website!y = -4x - 3
 Equations/502746: -10=-4+21 solutions Answer 338926 by Alan3354(30993)   on 2011-09-22 19:08:54 (Show Source): You can put this solution on YOUR website!No, it doesn't. Did you have a question?
 Square-cubic-other-roots/502641: what is the square root of 6 divided by 5 plus the square root of 3 1 solutions Answer 338915 by Alan3354(30993)   on 2011-09-22 18:15:15 (Show Source): You can put this solution on YOUR website!what is the square root of 6 divided by 5 plus the square root of 3 --------- Do you mean ? Or
 Inverses/502677: five times a number is 30.Let x represent the number.Then an equation is 5x=30.solve the equation.What is the number?1 solutions Answer 338914 by Alan3354(30993)   on 2011-09-22 18:12:16 (Show Source): You can put this solution on YOUR website!5x=30 Divide by 5
 Signed-numbers/502657: Brad is laying tile. Each tile has an area of 150 inches. Which is the closest to the length of a tile's side?1 solutions Answer 338912 by Alan3354(30993)   on 2011-09-22 17:57:30 (Show Source): You can put this solution on YOUR website!Not enough info. The tiles might be 10 by 15, or 6 by 25, or 12 by 12.5. --------- Also, 150 inches is not area, it's length.
 real-numbers/502617: having problem with math question 3 examples of a rational real number between 4 and 51 solutions Answer 338911 by Alan3354(30993)   on 2011-09-22 17:55:21 (Show Source): You can put this solution on YOUR website!There's 4.2, 4.3 & 4.4 Also, 4.07, 4.08, 4.09 And, 4 1/2, 4 6/7, 4 113/119 There are many more, an infinite number, in fact.
 Polynomials-and-rational-expressions/502629: (w^-9)^9 assume w=01 solutions Answer 338910 by Alan3354(30993)   on 2011-09-22 17:52:51 (Show Source): You can put this solution on YOUR website!Ok, w = 0. Do you have a question?
 Exponents/502661: I could use a little help on factoring this equation. Here is what it says: Factor the expression so that the co efficient of x is 1. USe the distributive property to check your work. 4x+8 1 solutions Answer 338909 by Alan3354(30993)   on 2011-09-22 17:51:19 (Show Source): You can put this solution on YOUR website!Hint: both coefficients are even numbers.
 expressions/502646: 30-4*2+5=21 solutions Answer 338908 by Alan3354(30993)   on 2011-09-22 17:48:08 (Show Source): You can put this solution on YOUR website!30-4*2+5=2 Not true.
 Geometry_Word_Problems/502649: find the measure of each angle of a triangle if the ratio of the measure is 2:5:81 solutions Answer 338906 by Alan3354(30993)   on 2011-09-22 17:33:46 (Show Source): You can put this solution on YOUR website!find the measure of each angle of a triangle if the ratio of the measure is 2:5:8 ------------ 2+5+8 = 15 180/15 = 12 degs -------- 2*12 = 24 degs 5*12 = 60 degs 8*12 = 96 degs
 Average/502645: The area of a rectangle is 24,396 square centimeters. If the width is 38 centimeters what is the length? How do you know?1 solutions Answer 338905 by Alan3354(30993)   on 2011-09-22 17:31:54 (Show Source): You can put this solution on YOUR website!The area of a rectangle is 24,396 square centimeters. If the width is 38 centimeters what is the length? Area = L*W L = Area/W = 24396/38 L = 642 cm -------------- How do you know? My dog told me.
 Numbers_Word_Problems/502598: find the three consective intergers whos sum is -3541 solutions Answer 338904 by Alan3354(30993)   on 2011-09-22 16:34:43 (Show Source): You can put this solution on YOUR website!-354/3 = -118, the middle INTEGER.
 Linear-equations/502601: how to find the y-intercept and x-intercept when y=41 solutions Answer 338903 by Alan3354(30993)   on 2011-09-22 16:28:21 (Show Source): You can put this solution on YOUR website!y=4 for all values of x, so the y-intercept is 4, or (0,4). It's a line parallel to the x-axis and 4 units in the positive direction. No x-intercept.