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# Recent problems solved by 'Alan3354'

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 Geometry_Word_Problems/479655: A circular flower garden has a diameter of 18 ft. Around the garden there is a circular sidewalk which is 2 ft wide. What is the length around the outer edge of the sidewalk? (Hint: Make a drawing.)1 solutions Answer 328695 by Alan3354(31518)   on 2011-08-09 14:26:52 (Show Source): You can put this solution on YOUR website!Diameter of the walk = 18 + 2 + 2 (2 ft on each side)
 Angles/479755: In the circle below, angle a = 7x + 2 and angle b = 9x - 4. Find the value of x1 solutions Answer 328694 by Alan3354(31518)   on 2011-08-09 14:23:29 (Show Source): You can put this solution on YOUR website!No circle is shown.
 Trigonometry-basics/479756: Solve the multiple-angle equation sin x/2=-sqrt3/2 So far I have 2x=sin^-1-sqrt3/2 with the answer x=0.4331 solutions Answer 328693 by Alan3354(31518)   on 2011-08-09 14:19:13 (Show Source): You can put this solution on YOUR website! x/2 = 240, 300 degs or 4pi/3, 5pi/3 radians x = 8pi/3, 10pi/3 + 4*n*pi, n = 0,1,2,3...
 Finance/479707: i need help with algebra i want to learn can you help me?1 solutions Answer 328691 by Alan3354(31518)   on 2011-08-09 14:13:04 (Show Source): You can put this solution on YOUR website!Start by looking at the solved problems on this site. --------- Some of the tutors here do tutoring for pay, too, so repost your request with whether or not you expect to make payment for assistance.
 Triangles/479751: [6.05] Find the height of a triangle with area of 81 square centimeters and a base of 9 cm.1 solutions Answer 328688 by Alan3354(31518)   on 2011-08-09 14:05:53 (Show Source): You can put this solution on YOUR website!Area = bh/2 81 = 9h/2
 Travel_Word_Problems/479752: A car cut off the first third of the distance at 80 km / hour. Then cut the second third at 24 km / hour. While the final third made at 48 km / hour. How was the average speed of the car in the entire distance??1 solutions Answer 328687 by Alan3354(31518)   on 2011-08-09 13:58:49 (Show Source): You can put this solution on YOUR website!A car cut off the first third of the distance at 80 km / hour. Then cut the second third at 24 km / hour. While the final third made at 48 km / hour. How was the average speed of the car in the entire distance?? ------------- If by "cut off" you mean traveled: ------- Total time = d/80 + d/24 + d/48 were d is 1/3 of the total distance tt = 3d/40 = total distance/40 Avg speed = 40 km/hr
 test/479726: how to construct triangles (grade 10)1 solutions Answer 328686 by Alan3354(31518)   on 2011-08-09 13:53:40 (Show Source): You can put this solution on YOUR website!Given what? Sticks? Numbers?
 Graphs/479740: what is 4/15 as a percent and how did you get it?1 solutions Answer 328685 by Alan3354(31518)   on 2011-08-09 13:49:56 (Show Source): You can put this solution on YOUR website!4/15 =~ 0.2666... *100 =~ 26.67% --------------- Or, 4/15 = p/100 15p = 400 per cent = 400/15 =~ 26.67
 Signed-numbers/479743: what is 1/25 as a percent and how did you get it? Thanks1 solutions Answer 328684 by Alan3354(31518)   on 2011-08-09 13:46:56 (Show Source): You can put this solution on YOUR website!1/25 = 4/100 = 4%
 Finance/479750: i want to pratice on algebra how do i do that 1 solutions Answer 328682 by Alan3354(31518)   on 2011-08-09 13:44:26 (Show Source): You can put this solution on YOUR website!Look at the solved problems on this site for one.
 Numeric_Fractions/479691: HELP ME SOLVE THESE I'M TRYING TO TEACH MYSELF ALGEBRA FOR TO RETAKE THE COMPASS TEST, THANKS (a)8+(-5) (b)(-17)+(-12) (C) -9+7 (d) -9-(-12) (e) 23-(-13) (f) -18-(32) (g) (-7)(-12) (h) (-12)(8) (i) (8)(-9) (-48)+6 IF U CAN SHOW ME SOME FRACTION THAT WILL BE NICE, THANKS 1 solutions Answer 328655 by Alan3354(31518)   on 2011-08-09 11:52:16 (Show Source): You can put this solution on YOUR website!(a)8+(-5) = 8-5 = 3 --------------------- (b)(-17)+(-12) = -17 -12 = -29 ----------------------- (C) -9+7 = -2 --------------- (d) -9-(-12) = -9 + 12 = 3 --------------- (e) 23-(-13) = 23 + 13 = 36 ----------------- (f) -18-(32) = -50 -------------- (g) (-7)(-12) = 84 (if they're multiplied) --------------- (h) (-12)(8) = -96 --------------------- (i) (8)(-9) = -72 ---------------- (-48)+6 = -42
 Exponents-negative-and-fractional/479664: -5/12*-61 solutions Answer 328634 by Alan3354(31518)   on 2011-08-09 10:52:45 (Show Source): You can put this solution on YOUR website!If you mean = 5/2 or 2.5
 Numeric_Fractions/479675: How do you solve the equation 5 1/9-2/3? I found the common denominator to be 9. So I came up with 5 5/9-6/9. But none of the answers I came up with matched the answers they had.1 solutions Answer 328632 by Alan3354(31518)   on 2011-08-09 10:47:28 (Show Source): You can put this solution on YOUR website!5 1/9-2/3 ------------- It's not an equation. Equations have equal signs. equal - equate - equation. ---------------- 5 1/9-2/3 (45 + 1)/9 - 6/9 46/9 - 6/9 40/9 ------- How did you get 5 5/9 from 5 1/9 ?
 test/479677: 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 328631 by Alan3354(31518)   on 2011-08-09 10:44:34 (Show Source): You can put this solution on YOUR website!I read your mind, I predicted you would post that.
 Circles/479662: Find the equation of a circle having the given center and radius. Center- (-2,3) Radius- sqrt 3 Thank you!1 solutions Answer 328619 by Alan3354(31518)   on 2011-08-09 10:21:18 (Show Source): You can put this solution on YOUR website!Center- (-2,3) Radius- sqrt 3 --------------- ------------------------ Knowing the answer is much less important than knowing why that's the answer.
 Complex_Numbers/479667: Write the Expression in the standard form a+bi (6-8i)+(4+7i)1 solutions Answer 328618 by Alan3354(31518)   on 2011-08-09 10:19:20 (Show Source): You can put this solution on YOUR website! (6-8i)+(4+7i) ------------ Add the real parts, then add the imaginary parts.
 Money_Word_Problems/479668: Assuming you currently meet your monthly expenses with no left over to speak of, how much more money a month do you need to make in order to pay off your loan in 20 years instead of 25? Is this reasonable?1 solutions Answer 328617 by Alan3354(31518)   on 2011-08-09 10:18:14 (Show Source): You can put this solution on YOUR website!Depends on the size of the loan. Google "Amortization" for specific numbers.
 Surface-area/479670: The diagonal of a square measures 14 inches. What is the length of the sides?1 solutions Answer 328616 by Alan3354(31518)   on 2011-08-09 10:16:54 (Show Source): You can put this solution on YOUR website! Solve for s
 Linear-equations/479624: what is the y-intercept of the line that contains the point (-4,0) and (0,-4) by graphing?1 solutions Answer 328612 by Alan3354(31518)   on 2011-08-09 10:02:44 (Show Source): You can put this solution on YOUR website!Hint: The y-axis is crossed at x = 0.
 Surface-area/479665: Find the surface area of a hemisphere given that the radius of the great circle is 6.2 centimeters 1 solutions Answer 328611 by Alan3354(31518)   on 2011-08-09 10:00:18 (Show Source): You can put this solution on YOUR website! for the whole sphere The round part is half of that. ----------------------------- If it's a solid, like 1/2 of a melon, the flat surface's area is
 Travel_Word_Problems/479546: A ball is thrown vertically upward at a velocity of 15 feet per second from a bridge that is 55 feet above the level of the water. The height h, in feet, of the ball above the water at the time t in seconds after it is thrown is h = 16t^2 + 20t - 48 Find the time when the ball strikes the water 1 solutions Answer 328597 by Alan3354(31518)   on 2011-08-09 07:53:55 (Show Source): You can put this solution on YOUR website!h = 16t^2 + 20t - 48 --------------------- If the initial upward speed is 15 ft/sec and the bridge is 55 ft above the water, the eqn would be h(t) = -16t^2 + 15t + 55 ------------------------- The equation you gave shows increasing altitude with time. It starts at -48 feet and never comes down.
 Volume/479589: Find the volume of the cylinder. Use these dimensions: radius=2.5, height=6.5.1 solutions Answer 328595 by Alan3354(31518)   on 2011-08-09 07:47:19 (Show Source):
 Equations/479593: 10 to the power of (3) + 10 to the power of (5) = ? a) 10 to the power of (8) b) 10 to the power of (15) c) 20 to the power of (8) d) 2 to the power of (15) e) 101 000 The sample test i have from my school says that the correct answer is (d), could this be correct? Thanks!1 solutions Answer 328594 by Alan3354(31518)   on 2011-08-09 07:45:42 (Show Source): You can put this solution on YOUR website!10 to the power of (3) + 10 to the power of (5) = ? ----------- e ------------- , but that's not what is asked.
 Volume/479611: find the volume of a cube with sides of length 2x.1 solutions Answer 328593 by Alan3354(31518)   on 2011-08-09 07:42:28 (Show Source):
 Travel_Word_Problems/479513: connie walks from her home to the bicycle repair shop at 6km/h and then bikes home at 20 km/h. If the total traveling time is 39 minutes, how far is it from her home to the repair shop?1 solutions Answer 328532 by Alan3354(31518)   on 2011-08-08 21:57:12 (Show Source): You can put this solution on YOUR website!connie walks from her home to the bicycle repair shop at 6km/h and then bikes home at 20 km/h. If the total traveling time is 39 minutes, how far is it from her home to the repair shop? ----------------- Her avg speed = 2*6*20/(6+20) = 60/13 km/hr d = r*t = (60/13)*(39/60) d = 3 km
 Volume/479501: Find the volume of a cone with a height of 7.1 m and a circular base whose radius is 3.2 m. Use 3.14 for pi. 1 solutions Answer 328524 by Alan3354(31518)   on 2011-08-08 21:17:59 (Show Source):
 Numeric_Fractions/479491: Find the exact value of the volume of a can of sauerkraut with a diameter 12 centimeters and height of 6 centimeters. Include correct units with your solution. Use "pi" in place of the pi symbol.1 solutions Answer 328523 by Alan3354(31518)   on 2011-08-08 21:17:02 (Show Source): You can put this solution on YOUR website! r = 6 h = 6
 test/479497: If it takes 10 minutes to cook 6 eggs, how many minutes will it take to cook 12 eggs? 1 solutions Answer 328520 by Alan3354(31518)   on 2011-08-08 21:12:54 (Show Source): You can put this solution on YOUR website!It depends. Are they cooked serially, one after another? Or are they all put in the pan together?
 Numeric_Fractions/479490: Exactly how many cubic inches of air can a fully inflated basketball hold if its radius is 4.8 inches? Include correct units with your solution. Use "pi" in place of the pi symbol.1 solutions Answer 328518 by Alan3354(31518)   on 2011-08-08 21:11:25 (Show Source):
 logarithm/479415: Evaluate the following logarithm by changing the base to the natural log. round the result to 3 decimal places. Log[27]351 solutions Answer 328482 by Alan3354(31518)   on 2011-08-08 18:49:16 (Show Source): You can put this solution on YOUR website! =~ 1.079 ------------------ gives the same result
 Travel_Word_Problems/479437: What is the distance traveled at a speed of 60 km per hour, for 2 hours1 solutions Answer 328481 by Alan3354(31518)   on 2011-08-08 18:45:11 (Show Source): You can put this solution on YOUR website!Use d = r*t distance = rate*time