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 Linear-equations/526681: I hope I chose the correct category for this problem: 5x-4y=8 , for y I Tried to solve and came up with y=-2-5x which doesn't seem right. I need step-by-step solution by 11/6/11 for homework assignment. Thank you.1 solutions Answer 348639 by jim_thompson5910(28707)   on 2011-11-05 19:48:31 (Show Source): You can put this solution on YOUR website! Start with the given equation. Subtract from both sides. Rearrange the terms. Divide both sides by to isolate y. Break up the fraction. Reduce. So the equation is now in slope intercept form where the slope is and the y-intercept is note: the y-intercept is the point
 Volume/526680: v + 4 = |-15|.1 solutions Answer 348637 by jim_thompson5910(28707)   on 2011-11-05 19:46:26 (Show Source): You can put this solution on YOUR website!v + 4 = |-15| v + 4 = 15 v = 15-4 v = 11
 Inequalities/526677: I'm trying to solve, using addition and multiplication principles. Problem: 3/4(3x-1/2)-2/3<1/3 Calculator gave answer: x<11/18 I don't know the steps to arrive at this answer, and must show my work for homework assignment due 11/6/11. Can you assist me with the process?1 solutions Answer 348633 by jim_thompson5910(28707)   on 2011-11-05 19:40:25 (Show Source): You can put this solution on YOUR website! Start with the given inequality. Distribute. Multiply EVERY term by the LCD to clear out the fractions. Multiply and simplify. Combine like terms on the left side. Add to both sides. Combine like terms on the right side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the solution is If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim
 Geometry_proofs/526665: Can someone explain in steps how you would do this proof ? This is ridiciulous everyone in my class understands it , and I don't get it. http://www.flickr.com/photos/68627030@N06/6316210261/in/photostream1 solutions Answer 348616 by jim_thompson5910(28707)   on 2011-11-05 19:14:33 (Show Source): You can put this solution on YOUR website!Here are the following reasons (that are missing from the given ones) b. Interiors on Same Side Theorem ** c. Definition of Supplementary Angles e. Definition of Congruent Angles g. Definition of Supplementary Angles h. Converse of Interiors on Same Side Theorem ** ** Note: The Interiors on Same Side Theorem states that "If two parallel lines are cut by a transversal, the interior angles on the same side of the transversal are supplementary." The basic idea here is to use the fact that PV is parallel to QM to show that angles 1 and 2 are supplementary (ie they add to 180 degrees). From there, you use substitution to show that angles 2 and 3 are also supplementary. Then you reverse the logical steps used beforehand to show that because angles 2 and 3 are supplementary, this means that LT must be parallel to MV.
 test/526654: 8^x = 10241 solutions Answer 348604 by jim_thompson5910(28707)   on 2011-11-05 18:48:58 (Show Source): You can put this solution on YOUR website! 8^x = 1024 (2^3)^x = 2^(10) 2^(3x) = 2^(10) Since the bases are equal, the exponents are equal 3x = 10 x = 10/3
 Average/526647: i took a 45 question test and missed 5 what is my score 1 solutions Answer 348587 by jim_thompson5910(28707)   on 2011-11-05 17:48:14 (Show Source): You can put this solution on YOUR website!You got 45-5 = 40 questions correct out of 45 So your score as a percentage is [(number correct)/(number total)] * 100 = (40/45)*100 = 0.889*100 = 88.9% So you got an 88.9%
 Word_Problems_With_Coins/526645: 19 quarters to 5 dollaras lowest tems 1 solutions Answer 348586 by jim_thompson5910(28707)   on 2011-11-05 17:42:20 (Show Source): You can put this solution on YOUR website!4 quarters = 1 dollar Multiply both sides by 5 to get 20 quarters = 5 dollars So 5 dollars = 20 quarters This means that the ratio 19 quarters: 5 dollars translates to 19 quarters: 20 quarters which reduces to 19:20
 Miscellaneous_Word_Problems/526643: Help me please! I will be very grateful f you would help me. I am solving for the variable. Th variable is "A". THANKYOU!1 solutions Answer 348585 by jim_thompson5910(28707)   on 2011-11-05 17:35:07 (Show Source): You can put this solution on YOUR website! Start with the given equation. Multiply both sides by the LCD to clear any fractions. Distribute and multiply. Subtract from both sides. Subtract from both sides. Combine like terms on the left side. Combine like terms on the right side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the solution is If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim
 Quadratic_Equations/526633: Write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in standard form, ax^2+bx+c=0. The solutions are -6,4.1 solutions Answer 348584 by jim_thompson5910(28707)   on 2011-11-05 17:14:55 (Show Source): You can put this solution on YOUR website! or Start with the given solutions. or Get everything to one side so that only 0 remains on the right side (for both equations). Use the zero product property to combine the equations. FOIL out the left side. So the answer is To check your work, simply solve for x. Doing so will show you that the solutions are or , which confirm the answer. If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim
 Permutations/526626: what is the actual space of all the non black face cards in a regular deck of cards?1 solutions Answer 348582 by jim_thompson5910(28707)   on 2011-11-05 16:54:33 (Show Source): You can put this solution on YOUR website!A non-black face card is a red face card (since there are only two colors: red and black) There are 3 face cards in each suit (J, Q, K) There are 2 red suits (Hearts, Diamonds) So there are 3*2 = 6 red face cards Which means that there are 6 non-black face cards.
 Graphs/526623: Find an equation of the line having the given slope and containing the given point. m=8/9,(5,-5).. I can solve this problem up to the last step where i need help! Here is how I am solving it. Substitute values for m,x1,, and y1 into the point slope equation. y-(-5)=(8/9)(x-5) =y-(-5)=8/9x - 40/9.. (here is where i get stuck) *finaly subtract 5 from both sides* y=8/9x-85/9 how do I get 85/9 as an answe when i subtract 5 from both sides i get 35/91 solutions Answer 348581 by jim_thompson5910(28707)   on 2011-11-05 16:44:18 (Show Source): You can put this solution on YOUR website! So
 Angles/526621: The Supplement of an angle is 20 less than 3 times the complement. Find the measure of the angle. PLEASE HELP1 solutions Answer 348580 by jim_thompson5910(28707)   on 2011-11-05 16:41:24 (Show Source): You can put this solution on YOUR website! "The Supplement of an angle is 20 less than 3 times the complement." means that where 'x' is the given angle. Start with the given equation. Distribute. Combine like terms on the right side. Subtract from both sides. Add to both sides. Combine like terms on the left side. Combine like terms on the right side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the solution is This means that the given angle is 35 degrees. If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim
 Equations/526620: So I have the equation (1+I)^.0798-1 and I need to figure out the value of I...how do I reformat the equation to be able to figure out I??1 solutions Answer 348579 by jim_thompson5910(28707)   on 2011-11-05 16:34:15 (Show Source): You can put this solution on YOUR website!There is no equal sign present, so this isn't an equation. This means that you cannot solve for I.
 Miscellaneous_Word_Problems/526618: a taxi begins a fare with inital charge of $2 on the meter and charges 20 cents per one-tenth a mile. how much will a 10-mile journey cost?1 solutions Answer 348577 by jim_thompson5910(28707) on 2011-11-05 16:24:16 (Show Source): You can put this solution on YOUR website! If it's 20 cents per one-tenth of a mile, then it's 200 cents per mile (multiply both quantities by 10) So it's really$2 per mile. So if you drive x miles, then the variable cost is 2x dollars. Add this to the fixed cost to get 2x+2 So the total fare for driving x miles is 2x+2 dollars. This means that the cost equation is c = 2x+2 Now if you drive 10 miles, then x = 10 and c = 2x+2 c = 2(10)+2 c = 20+2 c = 22 which means that a 10 mile journey will cost 22 dollars. If you need more help, email me at jim_thompson5910@hotmail.com Also, please consider visiting my website: http://www.freewebs.com/jimthompson5910/home.html and making a donation. Thank you Jim
 Rational-functions/526461: 4-5(7x-3)1 solutions Answer 348527 by jim_thompson5910(28707)   on 2011-11-05 03:43:03 (Show Source): You can put this solution on YOUR website! 4-5(7x-3) 4-5(7x)-5(-3) 4-35x+15 -35x+19 So 4-5(7x-3) = -35x+19
 Polynomials-and-rational-expressions/526396: simply (8^2)^1 1 solutions Answer 348482 by jim_thompson5910(28707)   on 2011-11-04 21:00:02 (Show Source): You can put this solution on YOUR website! (8^2)^1 8^(2*1) 8^2 64 So (8^2)^1 = 64
 Distributive-associative-commutative-properties/526391: How do you solve for 6x^3=3x^2+3x 1 solutions Answer 348477 by jim_thompson5910(28707)   on 2011-11-04 20:34:11 (Show Source): You can put this solution on YOUR website! 6x^3=3x^2+3x 6x^3-3x^2-3x=0 3x(2x^2-x-1)=0 3x(x-1)(2x+1)=0 3x=0 or x-1=0 or 2x+1=0 3x=0 or x=1 or 2x=-1 x=0/3 or x=1 or x=-1/2 x=0 or x=1 or x=-1/2
 Equations/526292: x^2-6x+5=01 solutions Answer 348475 by jim_thompson5910(28707)   on 2011-11-04 20:29:27 (Show Source): You can put this solution on YOUR website! Start with the given equation. Notice that the quadratic is in the form of where , , and Let's use the quadratic formula to solve for "x": Start with the quadratic formula Plug in , , and Negate to get . Square to get . Multiply to get Subtract from to get Multiply and to get . Take the square root of to get . or Break up the expression. or Combine like terms. or Simplify. So the solutions are or
 Probability-and-statistics/526387: 9-2g< -71 solutions Answer 348473 by jim_thompson5910(28707)   on 2011-11-04 20:16:57 (Show Source):
 Probability-and-statistics/526386: -11<_ 1 + 3n1 solutions Answer 348472 by jim_thompson5910(28707)   on 2011-11-04 20:15:17 (Show Source):
 Surface-area/526384: The perimeter of an equilateral triangle is 96 centimetres. What is the length of one side?1 solutions Answer 348466 by jim_thompson5910(28707)   on 2011-11-04 20:08:41 (Show Source): You can put this solution on YOUR website!The length of one side is 96/3 = 32 centimeters.
 Volume/526375: if the outside diameter of a pipe is 10cm.. The inside diameter is 9cm... How thick is pipe1 solutions Answer 348463 by jim_thompson5910(28707)   on 2011-11-04 19:52:04 (Show Source): You can put this solution on YOUR website!The pipe is 10 - 9 = 1 cm thick.
 Numeric_Fractions/526372: -5/6=x-1/31 solutions Answer 348461 by jim_thompson5910(28707)   on 2011-11-04 19:41:58 (Show Source): You can put this solution on YOUR website! -5/6=(x-1)/3 -5*3=6(x-1) -15=6(x-1) -15=6x-6 -15+6=6x -9=6x -9/6=x -3/2=x x=-3/2
 Geometry_Word_Problems/526367: solve 5(x+2)=60 show all of your step wrtie a reason for each step1 solutions Answer 348457 by jim_thompson5910(28707)   on 2011-11-04 19:20:06 (Show Source): You can put this solution on YOUR website! Start with the given equation. Distribute. Subtract from both sides. Combine like terms on the right side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the solution is
 Quadratic_Equations/526361: 2x^2+5x-1 Find the x-intercepts for the function. x^2+5/2x=1/2 is where I am at now. I don't know how to get the next step to get the answer.1 solutions Answer 348455 by jim_thompson5910(28707)   on 2011-11-04 19:07:22 (Show Source): You can put this solution on YOUR website!To find the x-intercepts of , we need to solve for x. Start with the given equation. Notice that the quadratic is in the form of where , , and Let's use the quadratic formula to solve for "x": Start with the quadratic formula Plug in , , and Square to get . Multiply to get Rewrite as Add to to get Multiply and to get . or Break up the expression. So the exact solutions are or which approximate to or (by using a calculator) So the x-intercepts are (0.186, 0) and (-2.686, 0)
 Triangles/526360: I am a triangle having a right angle and no congruent sides1 solutions Answer 348454 by jim_thompson5910(28707)   on 2011-11-04 19:02:41 (Show Source): You can put this solution on YOUR website!This triangle is then a right scalene triangle.
 Quadratic_Equations/526352: 2x^2+5x-11 solutions Answer 348452 by jim_thompson5910(28707)   on 2011-11-04 18:40:53 (Show Source): You can put this solution on YOUR website!What do you want to do here?
 Human-and-algebraic-language/526350: use mathamatical symbols to translate the verbal phrases into algebraic language . 10. one-tenth of W 1 solutions Answer 348451 by jim_thompson5910(28707)   on 2011-11-04 18:36:01 (Show Source): You can put this solution on YOUR website!"one-tenth of W " means
 Number-Line/525990: Where is 3/7 on a number line 1 solutions Answer 348279 by jim_thompson5910(28707)   on 2011-11-03 20:55:54 (Show Source): You can put this solution on YOUR website!3/7 = 0.42857 roughly So it's just above 1/4 (which is 0.25) and below 1/2 (which is 0.5)
 Equations/525989: -3+5-2x+8=121 solutions Answer 348278 by jim_thompson5910(28707)   on 2011-11-03 20:54:51 (Show Source): You can put this solution on YOUR website! Start with the given equation. Combine like terms on the left side. Subtract from both sides. Combine like terms on the right side. Divide both sides by to isolate . Reduce. ---------------------------------------------------------------------- Answer: So the solution is
 Travel_Word_Problems/525978: An airplane descends from 42,000 ft to 18,000 in 12 minutes. Express its rate of change in altitude in feet per minute as a signed number. (This chapter is discussing integers in multiplication and division.)1 solutions Answer 348277 by jim_thompson5910(28707)   on 2011-11-03 20:52:50 (Show Source): You can put this solution on YOUR website!(18000-42000)/12 (-24000)/12 -2000 So the rate of change is -2000 ft/min Basically, the plane is descending 2000 feet every minute.