Expression of a variable from the formula - 7th grade (12y) - math problems

Number of problems found: 247

  • Given
    1998-4b Given 2x =0.125 find the value of x
  • Value of expression
    expr X=2, y=-5 and z=3 what is the value of x-2y?
  • Expressions
    equation Expression (3a-7).(3a+7) is identical with: ?
  • Unknown number 17
    5to2 Milada said, I am thinking of a number such that I evaluate expression x1/3, the value of the expression would be 5. Which number Milada thinking?
  • Hotel
    hotel The hotel has a p floors each floor has i rooms from which the third are single and the others are double. Represents the number of beds in hotel.
  • Simplify 2
    expr Simplify expression: 5ab-7+3ba-9
  • Which
    plusminus_11 Which decimals when subtracted equal 3.89: a - b = 3.89
  • Rectangle from string
    obdelnik String 12m. Make rectangle when one side is two times longer than its width.
  • Thousand balls
    balls2 We have to create a thousand balls from a sphere with a diameter of 1 m. What will be their radius?
  • Simple equation 3
    equilateral_triangle_2 24 = n • 27, solve for n
  • Even / odd numbers
    parne_neparne a / Using variable n write two consecutive odd numbers. b / the sum of three consecutive odd numbers is 333. What are this numbers?
  • Perimeter to area
    circles_1 Calculate the area of a circle with the perimeter 15 meters.
  • Price increase
    sleva A 20 percent price increase meant a 90-crown raise. How many cost a product after?
  • Circle r,D
    bavlnka Calculate the diameter and radius of the circle if it has length 26.59 cm.
  • Area to perimeter
    circle11_3 Calculate circle circumference if its area is 254.34cm2
  • Circle - simple
    kruh The circumference of a circle is 198 mm. How long in mm is its diameter?
  • Diagonal of square
    ctverec_mo_1 Calculate the side of a square when its diagonal is 10 cm.
  • Radius
    circle_axes Find the radius of the circle with area S = 200 cm².
  • Unknown number
    5nums_1 Determine the unknown number, which double of its fourth square is equal the fifth its square.
  • Cube basics
    krychle_2 How long is the edge length of a cube with volume 15 m3?

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Expression of a variable from the formula - math word problems. Examples for 7th grade (seventh).