Direct relationship - 8th grade (13y) - math problems

Number of problems found: 179

  • Six students
    painter Two pupils painted the class in four hours. How long will it take for six pupils?
  • Angles ratio
    3angle_1 In a triangle ABC true relationship c is less than b and b is less than a. Internal angles of the triangle are in the ratio 5:4:9. The size of the internal angle beta is:
  • Slices of ham
    energy_1 If 17 slices equals 70 calories how many calories are in 5 slices?
  • Slope RR
    slope_rise_run A line has a rise of 2 and a run of 11. What is the slope?
  • Acres
    plocha_1 Two hours 24 students harvested chestnuts on 36 acres. How many square meters harvested one student per hour?
  • String
    provaz Divide the string length 800 cm in ratio 1: 5
  • Radians
    pi_text Convert 270° to radians. Write result as multiple of number π.
  • Salary
    platy Calculate the equivalent annual salary to an hourly wage of $ 19. Assume a 42-hour workweek.
  • A bucket
    watertank A bucket has 4 liters of water in it when it is 2/5 full. How much can it hold?
  • Donuts
    donut Find how many donuts each student will receive if you share 126 donuts in a ratio of 1:5:8
  • Saving
    cars Allen save € 2860 to buy a car. Yet it lacks save 55% of the car price. How much is the car?
  • Copiers
    images Three copiers will do the same in an hour k copies. How many copies would be done in an hour by four such copiers? ?
  • Acute angles
    angles_meter Sizes of acute angles in the right-angled triangle are in the ratio 1: 3. What is size of the larger of them?
  • Accidents
    nehoda-pomnik The count of accidents in 1995 caused 8780 women which is 8.4%. How many men caused the accidents?
  • Line segment
    lines_7 The 4 cm long line segment is enlarged in the ratio of 5/2. How many centimeters will measure the new line segment?
  • Server
    p_pro Calculate how many average minutes a year is a webserver is unavailable, the availability is 99.99%.
  • Temporary workers
    work_1 Three temporary workers work in the warehouse and unload the goods in 9 hours. In what time would five temporary workers unload the same products?
  • Masons
    Pat_a_Mat 1 mason casts 30.8 meters square in 8 hours. How long casts 4 masons 178 meters square?
  • A family
    smetiarske_auto A family of four pays for garbage collection per year 1800 Kč. How many crowns a year the waste company get from the house where lives 93 people?
  • Expansion
    magnification If one side of the rectangle is larger 4-times and second 2-times, what percentage increases the area of rectangle?

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Direct relationship - math word problems. Examples for 8th grade.