# Themes, topics - math problems

#### Number of problems found: 1048

- Reciprocal

It is true (prove it) that if a> b> 0: ? - Six students

Two pupils painted the class in four hours. How long will it take for six pupils? - Intersect and conjuction

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

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

The car travels at a speed of 70 km/h, what distance will it travel in 2 hours? - Cyclist 12

What is the average speed of a cycle traveling at 20 km in 60 minutes in km/h? - Friends

Five mates traveled and the journey they lasted 195 minutes. How long would travel only one of them? - The sum graphically

Draw a graphically sum of the all sides of 4-gon ABCD. - Cyclist 9

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

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

The body launched vertically up returns to the start site in 6 seconds. What height did it have? - Wave parameters

Calculate the speed of a wave if the frequency is 336 Hz and the wavelength is 10 m. - The 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

A 60 W bulb consumes 0.12 kWh of electricity. How long did she stand light without a break? - Three

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

Aunt Jane would paint her apartment in 10 hours, her mother in 15 hours. How much do they paint it for together? - Intersections

Find the intersections of the function plot with coordinate axes: f (x): y = x + 3/5 - Grandma

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

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

How many percentages mixtures do we get by adding 23ml of matter to 89ml of water?

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