Equation - examples - page 52

  1. Value 4
    fractal_11 If 5/18=425 what is the value 13/18?
  2. Two numbers 6
    numbers_49 Fill two natural numbers a, b: 7 + blank- blank = 5
  3. Find x
    eq222_23 Solve: if 2(x-1)=14, then x= (solve an equation with one unknown)
  4. Flour
    vaha_10 Kim needs 3/4 cup of flour to make 12 cookies. How much flour would she need to make 60 cookies?
  5. Commission 2
    compare_2 Mr gomez sells used cellphones. His commission for every cellphone sold is 20%. If his total sales is Php 33850, how much is his commission? Please, please, please show your solution.
  6. A number
    number_line_4 A number increased by 7.9 is 8.3
  7. Two numbers 7
    numbers_49 The sum of two consecutive even numbers is 30. Find the numbers.
  8. Equation 20
    eq222_21 In given equation: 8/9-4/5=2/9+x, find x
  9. Perctentages
    percent_24 35% of what number is 35?
  10. Given
    1998-4b Given 2x =0.125 find the value of x
  11. 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?
  12. The quotient
    12466 The quotient of g and 55 is the same as 279. What is g?
  13. 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?
  14. 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?
  15. 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
  16. 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.

Do you have an interesting mathematical example that you can't solve it? Enter it, and we can try to solve it.

To this e-mail address, we will reply solution; solved examples are also published here. Please enter e-mail correctly and check whether you don't have a full mailbox.

Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?