1. math

    Four-year -college tuition. The average tuition at a public four-year college was $3983 in 2001 and $5948 in 2005. Find the rate at which tuition was increasing.

    asked by christine on August 15, 2011
  2. physics

    Two resistors connected in series have an equivalent resistance of 790.6 . When they are connected in parallel, their equivalent resistance is 170.2 . Find the resistance of each resistor. (small value) (large value)

    asked by Anonymous on February 20, 2012
  3. maths

    find the roots of the equation X(square)+7x equal to 0.(b)write down the equation whose roots are -2 and 5. I will be happy to critique your thinking. Write the equation, and solve. In the second, hint: (x+2) is one factor.

    asked by nikita on June 6, 2007
  4. college algebra

    use the rational zeros theorem to find all the real zeros of the polynomial function,. use the zeros to factor f over the real numbers. f(x)=11x^3-x^2+11x-1 please show all work

    asked by ladybug on November 19, 2012
  5. math geometry ITT

    so i know that when you have an isosceles triangle has 2 equal sides, and the 2 angles created by those sides are also equal . if a question gives me the angle at the top ( which is 40 degrees ), how do i find the 2 equal angles at the bottom ?

    asked by amanda on January 10, 2011
  6. Geometry

    A fish tank with a rectangular base has a volume of 4,320 cubic inches the length and width of the tank are 15 inches and 12 inches .find the height in inches of the tank

    asked by Sam on March 15, 2016
  7. Physics

    A motorcycle stunt rider rides off the edge of a cliff. Just at the edge his velocity is horizontal, with magnitude of 9 m/s. Find the motorcycle's position from the edge of the cliff afyer 0.5 s. Use g = 9.8 m/s.s

    asked by Bentong on March 11, 2016
  8. math

    The Population of a town increased by 80% in 5 years. If the population is currently 18,000, find the population of this town 5 years agao. (Round to the nearest whole, if necessary). please send formula of this equation

    asked by Terrance on September 3, 2007
  9. math

    Mrs. Daniels pays $324 for a handbag and 3 pairs of shoes. The handbag costs half as much as the 3 pairs of shoes combined. find the cost of the handbag

    asked by Raishon on October 23, 2012
  10. Math

    A quiz had some 3-point and some 4-point questions. A perfect score was 100 points. Find out how many questions were of each type if there were a total of 31 questions on the quiz I have no clue how to start this.

    asked by ConfusedStudent on December 5, 2012
  11. physics

    A 120-V motor has mechanical power output of 2.20 hp. It is 92.0% efficient in converting power that it takes in by electrical transmission into mechanical power. (a) Find the current in the motor.

    asked by smita on September 5, 2013
  12. math

    A council consists of 10 members.four are NDC,three are NPP and three are from other parties.if a committee of three is to be selected,find the probabilities following: I.one of each party. II.Two NPP and one from other parties. III.one from other parties

    asked by farahan on March 26, 2016
  13. physical science explorations

    find the net force produced by a 40 newton force and a 50 Newton force in each of the following cases 1. both forces ast in the same direction. 2. both forces act in opposite directions.

    asked by john brown on August 25, 2009
  14. trigonometry

    from a window 30ft above the ground, the angle of elevation to the top of the building across the street is 50° and the angle of depression to the base of the building is 20° find the height of the building across the street

    asked by Julyn on January 16, 2017
  15. Geometry

    Given: Right Pyramid, ABCD is a rhombus AB = 6, mBAD = 50, mSKO = 40 Segment SO is perpendicular to ABCD, Segment OK is perpendicular to segment DC Find: Volume and Surface Area of the figure

    asked by John Lorenda on April 22, 2018
  16. Algebra

    Eleven numbers with the sum 105 are written on the circle. The sum of any two consecutive numbers is not smaller than 18. Find the least possible value of N, so that each number on the circle is not greater than N, for any set of numbers.

    asked by Alex on October 16, 2018
  17. Algebra

    The lenght of one base of a trapezoid is 19 less than five times the length of the other base. If the trapezoid has a height of 18 feet and an area of 477 ft2, find the length of the longer base

    asked by Sharell on August 17, 2016
  18. Math-Statistics

    Find a confidence interval for ƒÊ assuming that each sample is from a normal population. a. P x = 14, ƒÐ = 4, n = 5, 90 percent confidence b. P x = 37, ƒÐ = 5, n = 15, 99 percent confidence c. P x = 121, ƒÐ = 15, n = 25, 95 percent confidence

    asked by Richard on December 6, 2011
  19. algbra

    Graph the following equations; calculate the slope, x-intercept, and y-intercept, and label the intercepts on the graph. Find an equation in slope-intercept form passing through the points (-6.2,18.1) and (-3.4,18.1).

    asked by bianca on February 28, 2011
  20. Exterior angle what am I doing wrong?

    Find the measure of the indicated exterior angle. Exterior angle is: 197-5n Two interior angles are: 5n+21 and n+11 I set it up as: 197-5n=5n+21+n+11 197-5n=6n+32 165=11n but this does not make sense.

    asked by bart on May 16, 2010
  21. Algebra

    A car and a bus leave at the same time from same location. The speed of the car is 7mph faster than twice the speed of the bus. After 2.5 hours they are 100 miles apart. Find the speed of each.

    asked by James B on May 30, 2016
  22. Mathematics Algebra

    Question: If the expression (x^2 + 2x +4)/(x^2 - 2x - 4) has a value between (1/3) and 3 for all real values of x, determine the range of the expression [9.(3)^x + 6.(3)^2x + 4]/[ 9.(3)^2x - 6.(3)^x +4 My thoughts on the question: I can see that if we

    asked by Dulyana on May 20, 2017
  23. Applied Calculus

    Find the absolute extrema of the function on the interval [2,3]. (Round your answers to the nearest hundredth.) Absolute Minimum ___ at x=___ Absolute Maximum ___ at x=___

    asked by Jacob on April 12, 2013
  24. math

    pq is a tower standing vertically on the horizontal ground. from a, the angle of elevation of top p of the tower is 45°. on moving 50 m. up a slope of 15°, the angle of elevation becomes 75° from b. find height of the tower

    asked by Anonymous on February 25, 2017
  25. math

    the mass of 3 dictionaries and 2 textbook is 8 kg and the mass of 3 dictionaries and 3 textbook is 9 kg. find the mass of 5 textbooks? math - Steve, Monday, September 19, 2016 at 5:17am 3d+2t = 8 3d+3t = 9 clearly, t=1 i cant understand it

    asked by murtaza on September 19, 2016
  26. math

    a boat goes 12km upstream and 40km down stream in 8 hour it go 16km upstream and 39km down stream in same time find the speed of boat in the still water and in the stream

    asked by deepa on November 2, 2016
  27. Calculus

    For these questions gyazo.com/d0950b43c16f5cf91d2db25e4d527b68 gyazo.com/47b9c66487d55f11ba22b65fc2285cf9 The link you sent had 3t^8 - 2t^5 as the answer to the first one, what answer choice does that match up with? Also, how do I find the answer for the

    asked by Matt on February 24, 2019
  28. Calc.

    Find the minimum cost of producing 20,000 units of a product, where x is the number of units of labor (at$48 per unit) and y is the number of units of capital (at $36 per unit). P(x,y)=100x^.6y^.4

    asked by Nancy on December 9, 2010
  29. math

    my question is Identify the percent of change as increase or a decrease. Then find the percent of change. Round to the nearest tenth of a percent, if necessary. 1/3 to 2/3. How do I figure it out? I put 33% decrease

    asked by Jordan on February 16, 2017
  30. College Algebra

    A cars value is declining exponentially. The car is currently 3 years old and has a value of 18,000. The car sold for 26,000 brand new. Find the rate at which the value of the car is decreasing. So far my equation is 18,000=26,000 (3-.04)^the But I'm not

    asked by Austin on April 21, 2016
  31. math

    Zack orders a box of 80 sweaters manufactured from a factory. He needs to check the quality of 30% of the sweaters. Select all of the equations that Zack could use to find x, the number of sweaters he needs to check.

    asked by Anonymous on December 16, 2016
  32. Linear Equation

    I posted a question below but forgot to put in the equation! So sorry. The problem states: Find 2 numbers that satisfy the equation then graph it. The equation is 2y+2=0 I think one of the numbers is -1, but what could the other be or am I doing the

    asked by Betty on September 13, 2007
  33. Physics

    the distance of a planet from its sun is 19000000 miles. if there are 29400000 seconds in one orbit, find the speed of the planet in its orbit about the sun. (assume a circular orbit)

    asked by S on January 18, 2016
  34. MATH

    THE LENGTH OF A RECTANGLE IS 3M MORE THAN 2 TIMES ITS WIDTH. IF THE AREA IF THE RECTANGLE IS 99CM^2, FIND THE DIMENSIONS OF THE RECTANGLE TO THE NEAREST THOUSANDTH. If L = length and W = width, L = 2W + 3 and LW = 99 Substitute and solve for either L or W.

    asked by TB on June 24, 2007
  35. Physics

    Solve this question, the resultant of two force acting at right angle to each other on a body is ten newton. If the angle between the resultant and one of the force is sixty degree, find the force.

    asked by Adeleke on October 12, 2011
  36. Math

    A box contains 3 red marbles, 6 blue marbles, and 1 white marble. The marbles are selected at random, one at a time, and are not replaced. Find the probability. P(red and white) Please help me

    asked by Lee on February 2, 2012
  37. probability

    Consider the random variables X, Y and Z, which are given to be pairwise uncorrelated (i.e., X and Y are uncorrelated, X and Z are uncorrelated, and Y and Z are uncorrelated). Suppose that E[X]=E[Y]=E[Z]=0, E[X2]=E[Y2]=E[Z2]=1, E[X3]=E[Y3]=E[Z3]=0,

    asked by JuanPro on March 28, 2014
  38. math 121

    Henry will reject a cookie with less than 8 raisins.In the past, one out of every 100 cookies had less than 8 raisins. Find theprobability that the first cookie Henry rejects is the 5th cookie on the line.

    asked by stephen on November 20, 2012
  39. Remy

    triangle AOB is a right angled triangle....(1.5, 2)is the midpoint co-ordinate of AB the co-ordinate of B is (2.5. 0)... Find the height of point A reached by the the top of the triangle... Could you show this step-by step please?

    asked by Maths URGENT on September 28, 2009
  40. math/physics

    An electron moving through an electric field experiences an acceleration of 6.1 multiplied by 103 m/s2. (a) Find the electric force acting on the electron. (b) What is the strength of the electric field?

    asked by jake on January 11, 2010
  41. Maths

    On the horizontal plane there is a vertical tower is a vertical tower and the shadow of its is found to be 40 m longer.when sun's altitude is 30 degree than what it is 60 degree.find the height of tower.

    asked by Saurav on January 16, 2012
  42. Remy

    triangle AOB is a right angled triangle....(1.5, 2)is the midpoint co-ordinate of AB the co-ordinate of B is (2.5. 0)... Find the height of point A reached by the the top of the triangle... Could you show this step-by step please?

    asked by Maths URGENT on September 28, 2009
  43. About work

    Hello am new at this work at home but i never find any good site i can work with pls help am from nigeria send me link of good work at home that can suit me nothing is small to earn. thanks

    asked by Adewale on July 25, 2011
  44. math

    A rectangular piece of carpet is place on the floor of a rectangular room leaving a margin of 1 m around it. If the room measures 8 m by 6 m find the area of the room not covered by the carpet.

    asked by bill on March 10, 2015
  45. Algebra

    I am given a graph of a parabola and I have to write a function in at least two forms that will produce the graph. I think that I can write the factored form first since I have the two x-intercepts but I don't know what the "a" is in the equation y=

    asked by Holly on January 5, 2011
  46. Math

    Zack orders a box of 80 sweaters manufactured from a factory. He needs to check the quality of 30% of the sweaters. Select all of the equations that Zack could use to find x, the number of sweaters he needs to check.

    asked by Please help!!!!!!! on May 26, 2016
  47. math

    Identify the domain and range of the following: f(x) = 4-x^2, -5

    asked by anonymous on August 3, 2009
  48. Science

    A body weight 500 N in air and weight of displace water is 300N then find apparent loss in the weight of body. The upthrust on body. The volume of the body

    asked by kartik on October 31, 2015
  49. Precalculus

    The sides of an isosceles triangle are 10 cm, 10 cm, and 12 cm. A rectangle is inscribed in the triangle with one side on the triangle's base. The other two vertices of the rectangle are on the triangle's legs. Find the Maximum Area of the Rectangle.

    asked by Georges on November 18, 2012
  50. math

    Three men and three women are waiting to be interviewed for jobs. If they are all selected in random order find the probability of each event. All the women will be interviewed first. No man will be interviewed until at least two women have been

    asked by Andrew on November 15, 2012
  51. Agebra

    A 12ft. board is cut into two pieces so that one piece is 8 ft. longer than 3 times the shorter piece. If the shorter piece is x feet long, find the lengths of both pieces

    asked by Ursula on September 27, 2009
  52. calculus - interval of convergence

    infinity of the summation n=0: ((n+2)/(10^n))*((x-5)^n) .. my work so far. i used the ratio test = lim (n-->infinity) | [((n+3)/(10^(n+1)))*((x-5)^(n+1))] / [((n+2)/(10^n))*((x-5)^n)] | .. now my question is: was it ok for me to add "+1" to "n+2" to become

    asked by COFFEE on July 30, 2007
  53. math

    I have finished all my homework but I have one problem that I cannot answer. The teacher said that no one could probably answer this. Can someone help? We have to find the next three numbers in the pattern and explain the rule for the pattern. 8, 27, 64,

    asked by Michael on August 9, 2006
  54. physics

    an object of height 5 cm is placed at a distance of 2m in front of a mirror and its image is obtained on a screen.Find the distance of screen from the mirror,nature of the mirror and its focal length.

    asked by Anonymous on November 20, 2015
  55. trig

    A pole is braced with a wire from the top of a pole to the ground. The wire is 100 feet long and makes an angle of 40° with the ground. Find the height of the pole.

    asked by Anonymous on March 15, 2013
  56. Geometry

    A square pyramid has a surface area of 175 square inches. The square base has side lengths of 5 inches. Find the slant height of the pyramid.

    asked by Helen on April 6, 2016
  57. Algebra 2

    From a 52-card deck a card is drawn and then replaced. After the deck is shuffled, a second card is drawn. Find the probability of each event. a) both cards are clubs. PLEASE SHOW ALL WORK!

    asked by Trisan on December 9, 2009
  58. norland

    A vegetable pizza costs $8 and a chicken pizza costs $12. Find an inequality to determine the number of pizzas he can buy along with one vegetable pizza if he has $140 to spend.

    asked by Anonymous on April 17, 2016
  59. Geography

    Okay, I think I have the correct answer for this question. Please let me know if I am correct. Which Sea is largest? North, Mediterranean, Caspian, or South China? I find it to be the Caspian Sea at 371000 sq km. Am I correct????

    asked by Reed on September 4, 2010
  60. Calculus

    SORRY, i wrote this question wrong before ... u, v, w are UNIT VECTORS. the angle between u and v is 25 degrees and the angle between vector v and w is 35 degrees. find (v+w-3v). NOTE: vector u and w are on opposite sides of vector v.

    asked by kally on February 11, 2012
  61. Math 1

    The number 2 is chosen to begin a ladder diagram to find the prime factorization of 66. What other numbers could have been used to start the ladder diagram for 66? How does starting with a different number change the diagram?

    asked by Stephen on January 5, 2015
  62. physics

    a neutron of mass 1.67*1o power of (-27) is moving with a velocity 10 to the power of(6) collides with a deuteron of mass 3.34*10 to the power of (-27) kg at rest .after collision if both have single particle find its velocity

    asked by srikala on April 11, 2012
  63. math

    a total of $5000 is invested at 2%, 3%, and 4%. the amount invested at 4% is equal to 2% and 3% combined together. the total interest gained for 1 year is $145. find the amount invested at each rate.

    asked by vince on February 10, 2015
  64. Pre calc

    Find sin(2x), cos(2x), and tan(2x) from the given information. sin(x) = 5/13, x in Quadrant I sin(2x)? cos(2x)? tan(2x)? I honeslty just need one good example of how to do these please show all work and finalize answer

    asked by Armani on April 13, 2017
  65. Math

    The large rectangle shown, is composed of five congruent smaller rectangles, each with whole number dimensions. If the perimeter of each smaller rectangle is 20 com, find the are of the entire large rectangle in sq cm.

    asked by Eric on March 17, 2016
  66. math help please...

    1.You want to use the interval method to solve a rational inequality. Explain how to find the intervals. 2.Explain how the interval method works. 3.Explain in your own words what a reciprocal function is.

    asked by steven on January 6, 2014
  67. Math

    A bag contains 6 red marbles, 3 white marbles, and 7 blue marbles. You pick a marble without looking. Find the probability of drawing a white marble. Can someone please explain how I would work this out?

    asked by Emily on May 21, 2018
  68. physics

    Janet wants to find the spring constant of a given spring, so she hangs the spring vertically and attaches a 0.42 kg mass to the spring's other end. If the spring stretches 4.0 cm from its equilibrium position, what is the spring constant?

    asked by McKenzie on February 22, 2012
  69. Physics

    Locomotive A travels 100km/hr and locomotive B travels 140km/hr. Locomotive B starts 15 kilometers Behind locomotive A and travels on the same direction. Find the time elapsed and how far each traveled before they meet.

    asked by Steph on September 26, 2012
  70. Math

    Elisa has 50 invitations to distribute to her neighbors over three days. She distributes 12 on the first thing and, i, invitations on the second day. Which expression can best be use to find the number of invitations left to distribute on the third day

    asked by Cindy on April 22, 2014
  71. math

    Nine cards are numbered 1-9. what is the probability of drawing a number greater than 6 or an odd number. I know the answer is 2/3 but I don't know how you find the probability when it says "greather than 6 OR and odd number"... how do you calculate the

    asked by martha on June 6, 2012
  72. Algebra

    Hi this question was already asked but there is still no correct answer. I can't seem to solve this for x correctly...I got 128 over 55 as an answer which can't be correct. Please help me find the correct answer! Thanks The equation is: .05x-.6(x+2)=.08

    asked by Clare on October 12, 2011
  73. college algebra

    a rectangular box has a volume of V(x)=x^3+13x^2+50x+56 cubic inches. The height of the box is x+7 inches. The width of the box is x+4 inches. Find the length of the box in terms of x.

    asked by Missy on March 18, 2012
  74. @Jake

    You are now banned because of your blatant cheating. Other students should take note! When we find students posting all the answers for any assignment, quiz, test, or whatever, those students will be banned from posting on this website.

    asked by Writeacher on January 25, 2017
  75. World History

    1.How did modern states emerge? 2.What challenges confronted the centralization of Muslim states during the 18th century? 3.How did the different Muslim states respond to these challenges? If you can at least tell me where to find it that would be great.

    asked by Linda on March 4, 2014
  76. Physics

    After a completely inelastic collision, two objects of the same mass and same initial speed are found to move away together at 1/5 their initial speed. Find the angle between the initial velocities of the objects.

    asked by Zaira on November 14, 2013
  77. Math

    An airplane is flying in a direction of 65 degrees at 450 mph. A wind is blowing in a direction of 20 degrees at 35 mph. Find the actual speed and direction of the plane.

    asked by Jayme on November 20, 2014
  78. MATH

    EACH LETTER IN EACH ADDITION PROBLEM STANDS FOR A NUMBER BETWEEN 0 AND 9.NO TWO LETTERS STAND FOR THE SAME NUMBER IN EACH QUESTION. FIND THE VALUE FOR EACH LETTER.FOR EACH PROBLEM, USE THE NUMBERS IN THE BOX NEXT TO THE PROBLEM. T E N (5,6,1,2,7) + O N

    asked by ALEX on June 1, 2016
  79. sensitive probability plz help

    (i):find the number of four letter words that can be formed from the letter history (ii):how many of them begin and end with a consonant (iii):how many contain the letter (Y) (iv):how many beging with (T) and end with a vowel (v):how many contain both

    asked by edward on August 14, 2015
  80. PHYSICS!

    At a certain point in a pipeline the water's speed is 4.00 m/s and the gauge pressure is 5.00 x 10^4 Pa. Find the gauge pressure at a second point in the line, 12.0 m lower than the first, if the cross-section area at the second point is twice that at the

    asked by Happinessdelight on June 3, 2017
  81. mathematics

    the perimeter of a rectangular field is 140m. if the length is increased by 15m and the breadth is decreased by 5m, the length will become 3 times the bredth. find the length and the breadth of the field.

    asked by Anonymous on April 13, 2013
  82. Math

    Mrs. Daniel pays $324 for a handbag and 3 pairs of shoes. The handbag costs half as much as the 3 pairs of shoes combined. Find the cost of the handbag.

    asked by Harish on August 27, 2018
  83. MATH help

    Find the area of the following shape. You must show all work to receive credit. Figure ABCDEF is shown. A is located at negative 2, 6. B is located at negative 5, 2. C is located at negative 2, negative 3. D

    asked by flaca on October 28, 2015
  84. Math/Chemistry

    Your friend eats 50.0g tuna steak. You find out that the tuna is 0.001% (by mass) mercury. The lethal dose of mercury is 5.5x10^-3 mg of mercury. Should you take your friend to the hospital?

    asked by Ray on October 11, 2016
  85. Math

    I need to find the perimeter of a figure with two missing side lengths. The lengths I have are : 3x, 5x-2, 6x-5, 2x I need the two side lengths and the total perimeter. Please help I have googled and watched videos and I still don’t understand

    asked by Cherie on June 9, 2019
  86. Math

    Consider two nonnegative numbers x and y such that x + y = 12. Find the values of x and y that optimize the following quantity. xy Maximize the quantity. {x, y} = Minimize the quantity. (Order your answers from smallest to largest x, then from smallest to

    asked by Meghan on April 7, 2018
  87. Derivatives

    Find the derivatives of: 1. H(x)= sin2xcos2x The answer given is 2cos4x. My question is, how in the world did they get that!? Shouldn't the answer at least contain the sin function, either negative or positive seeing as it's the derivative of cos? Also,

    asked by Daisy on October 3, 2013
  88. physics

    Two species of singly charged positive ions of masses 20x10^-27 kg and 23.4x10^-27 kg enter a magnetic field at the same location with a speed of 1x10^5 m/s. If the strength of the field is .2 T, and they move perpendicularly to the field, find their

    asked by Anonymous on March 15, 2008
  89. History

    To rule his empire successfully, hammurabi instructed his own governors__________. A.To teach local rulers. B.To rule distant cities. C.To train his sons to rule. D.To cut off communication with the outside world. I think its B but I can find anything in

    asked by Anonymous on October 1, 2018
  90. language arts

    in " all together now " , Jordan uses appeals to emotion and appeals to reason to try to persuade her readers that her views are important . in a paragraph , site one example of each king of appeal in her work . then , explain whether you find jordans

    asked by help please on November 2, 2016
  91. ISLAMIC

    I refer to the verse 22:78. “And make jihad in God’s cause with true jihad. It is He who has chosen you, and has laid no hardship on you in religion; the creed of your forefather Abraham. It is He who has named you Muslims, in bygone times and in this

    asked by ASMA89 on February 8, 2013
  92. Biology

    I know it is a bit long and maybe difficult, please help me to answer these.. 1) I have pET28a with insert inside. Insert is 400 bp in size. I want to check my insert with both single digestion and double digestion. I already isolated my plasmid but i do

    asked by Restriction Enzyme Digestion on March 31, 2014
  93. statistics

    In a population of exam scores, a score of X = 48 corresponds to z = +1.00 and a score of X = 36 corresponds to z = -0.50. Find the mean and standard deviation of the population.

    asked by Teresa on March 17, 2010
  94. calculus1

    Set up the integrals that can be used to find the area of the region by integrating with respect to X and Y (the region is bounded by y=3x,y=x,y=4-x) Anyone help me set up the integrals??

    asked by karen on June 8, 2015
  95. Calc Help

    Find two functions that this could be the derivative of: y'=4x+7 I have one: y=2x^2 + 7x I cant think of another one!! add a constant. Remember that you can add an arbitrary constant to any integral. The derivative will be the same.

    asked by Robert on March 7, 2007
  96. Calculus

    a square is defined by the unit vectors i(vector) and j(vector). FInd the projections of i(vector) and j(vector) on each of the diagonals of the square.

    asked by Jennifer on October 15, 2012
  97. algebra

    the permeter of a rectangle is 148 inches the length exceeds the width by 52 inches find the length and width..

    asked by math on January 17, 2010
  98. algebra

    find the slope of the line through the folling pairs of points. (-5, -3) and (-5,2) Since the two points are on a vertical line (how does one know that?), the slope is infinite.

    asked by dee on May 19, 2007
  99. statistics

    a machine has 0.04 probability of producing a defective item. If it produces 6 items find: a. probability none is defective b. at least one is defective c. all are defective

    asked by tiffany on March 17, 2014
  100. math age problem

    raiven is 8 years more than rolf and miguel is 2 years younger than rolf.the sum of their ages is 6o. find their ages

    asked by riko on February 17, 2016

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