Equation - examples - page 55

  1. Equation 20
    eq222_21 In given equation: 8/9-4/5=2/9+x, find x
  2. Simple equation 6
    eq1_9 Solve equation with one variable: X/2+X/3+X/4=X+4
  3. Substitution method
    500px-Sine_cosine_plot.svg Solve goniometric equation: sin4 θ - 1/cos2 θ=cos2 θ - 2
  4. Which
    plusminus_11 Which decimals when subtracted equal 3.89: a - b = 3.89
  5. A report
    work_4 Maricris can type a committee report in 5 hours. Jane helped Maricris and together they finished the report in 3 hours. How long would it take Jane to complete the report she had worked alone?
  6. Find unknown
    eq222_26 Find unknown numerator: 4/8 + _/8 = 1
  7. Dirty road
    car_30 Mr. Smith is on a road trip to a remote disc golf course 180km away. He travels part of the way at 100km/h along the highway, and part of the way at 50km/h along dirt roads. If it took 2 hours to get there, how many hours did he spend on dirt roads?
  8. Given
    1998-4b Given 2x =0.125 find the value of x
  9. The quotient
    12466 The quotient of g and 55 is the same as 279. What is g?
  10. Math test
    test_13 Obelix filled a mathematical test in which he answered 25 questions. For every correct answer, he received 5 points, for each bad answer he had 3 points deducted. Obelix gained 36% of all points in the test. How many questions did he solve correctly?
  11. Father and daughter
    time_14 When I was 11 my father was 35 year old. Now, father has three times older then me. How old is she?
  12. Powers 3
    exp_4 2 to the power of n divided by 4 to the power of -3 equal 4. What is the vaule of n?
  13. Tickets 4
    cinema2_13 Stacey is selling tickets to the school play. The tickets are $7 for adults and $5 for children. She sells twice as many adult tickets as children's tickets and brings in a total of $342. How many of each kind of ticket did she sell?
  14. Eqn
    fractal_16 Solve equation with fractions: 2x/3-50=40+x/4
  15. 1.5 divided
    eq2_3 1.5 divided by 1 = w divided by 4
  16. On the 4
    water_12 On the way to playing disc golf with his two boys, Mr. Smith purchases 3 muffins and 2 bottles of water, totaling $9.75. The following week he only has Asher with him, so he purchases 2 muffins and 1 bottle of water totalling $6.00. What is the cost of on
  17. Solve 3
    eq2_4 Solve quadratic equation: (6n+1) (4n-1) = 3n2
  18. Home cleaning
    bleach Mr. Smith is cleaning up a big mess at home. In the closet, he finds a solution that is 5% bleach, and another stronger solution that is 20% bleach. For this particular job, he needs 600mL of 15% bleach. How much of each type (to the nearest mL) should he.
  19. Far country
    dukat_2 In a country far away, the value of 3 pesos is 12 centavos more than the value of 1 peso. How many centavos is 1 peso worth?

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