Equation - 9th grade (14y) - math problems

Number of examples found: 708

  • Fifth of the number
    numbs_5 The fifth of the number is by 24 less than that number. What is the number?
  • Mean
    integrales if the mean of the set of data 5, 17, 19, 14, 15, 17, 7, 11, 16, 19, 5, 5, 10, 8, 13, 14, 4, 2, 17, 11, x is -91.74, what is the value of x?
  • Unknown number 23
    cisla_4 Find 2/3 of unknown number, which is two thirds of the 99.
  • Equation with abs
    abs Solve this equation with absolute value member: ?
  • The larger
    59_number The larger of two numbers is nine more than four times the smaller number. The sum of the two numbers is fifty-nine. Find the two numbers.
  • Substitution
    eq1_5 solve equations by substitution: x+y= 11 y=5x-25
  • Perctentages
    percent_24 35% of what number is 35?
  • Algebrogram
    plus_2 Solve algebrogram: mama+anna=vari How many solutions are?
  • Percent
    percentage_2 Calculate how many % is the number 26.25 less than the number 105.
  • Honza
    calendar_6 Honza is 13 years old and Peter 21 years old. After how many years are their ages will be at ratio 7: 9?
  • ATC camp
    camp The owner of the campsite offers 79 places in 22 cabins. How many of them are triple and quadruple?
  • Girls
    playground_2 The children's competition was attended by 63 girls, which is 30% of all children's participants. How many children attended this competition?
  • Pure quadratic equation
    kvadrat Solve pure quadratic equation ?.
  • Equation - inverse
    hyperbola_3 Solve for x: 7: x = 14: 1000
  • Pupils
    skola_23 There are 350 girls in the school, and the other 30% of the total number of pupils are boys. How many pupils does the school have?
  • Viju
    chicken_2 viju has 40 chickens and rabbits. If in all there are 90 legs. How many rabbits are there with viju??
  • Father and son
    family_17 Father is 48 years old, son 23. When will be the father twice older than a son?
  • Radius
    green_circle Determine the radius of the circle, if its perimeter and area is the same number.
  • Equation
    cubic How many real roots has equation ? ?
  • Percentage reduction
    sales_percentages Reducing the unknown number by 19% get number 700.7 Determine unknown number.

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