Themes, topics - math problems

Number of problems found: 1048

  • Reciprocal
    inverse It is true (prove it) that if a> b> 0: ?
  • Six students
    painter Two pupils painted the class in four hours. How long will it take for six pupils?
  • Intersect and conjuction
    venn_intersect Let U={1,2,3,4,5,6} A={1,3,5} B={2,4,6} C={3,6} Find the following. 1. )AUB 2. )A'UB'
  • The bulb
    bulbs What is the resistance of a filament lamp when it is connected to a 9V battery and has a current of 120 mA?
  • The car
    car The car travels at a speed of 70 km/h, what distance will it travel in 2 hours?
  • Cyclist 12
    cyclist What is the average speed of a cycle traveling at 20 km in 60 minutes in km/h?
  • Friends
    country Five mates traveled and the journey they lasted 195 minutes. How long would travel only one of them?
  • The sum graphically
    fun Draw a graphically sum of the all sides of 4-gon ABCD.
  • Cyclist 9
    cyclist A cyclist travels at a speed of 4.25 km per hour. At that rate, how far can he travel in 3.75 hours?
  • Sprayers
    postrekovac The vineyard can be sprayed first sprayer in 5 hours and with the second in 8 hours. How long would it take if we use sprayers both at once?
  • Rocket start
    freefall1 The body launched vertically up returns to the start site in 6 seconds. What height did it have?
  • Wave parameters
    frequency-and-wavelength Calculate the speed of a wave if the frequency is 336 Hz and the wavelength is 10 m.
  • The bulb
    bulb Calculate what voltage is at the terminals of the bulb, if the work is done 18 J to transfer particles with an electric charge of 6 C.
  • Bulb
    bulb A 60 W bulb consumes 0.12 kWh of electricity. How long did she stand light without a break?
  • Three
    work Three pavers will pave the sidewalk in 4 days. How long does it take for two tiles to pave the same sidewalk?
  • Together m+d
    painter Aunt Jane would paint her apartment in 10 hours, her mother in 15 hours. How much do they paint it for together?
  • Intersections
    linearna Find the intersections of the function plot with coordinate axes: f (x): y = x + 3/5
  • Grandma
    family We're going to Grandma. We still have 24 km left. How far does Grandma live if we have traveled from the total distance: half, a third, a fifth?
  • Three numbers
    dice How much we increases the sum of three numbers when the first enlarge by 14, second by 15 and third by 16? Choose any three two-digit numbers and prove results.
  • Mixture
    roztoky How many percentages mixtures do we get by adding 23ml of matter to 89ml of water?

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