Equations practice problems - page 167 of 239
Number of problems found: 4770
- Fifth of the number
A fifth of the number is 24 less than that number. What is the number? - Six years
In six years, Jan will be twice as old as he was six years ago. How old is he? - Father and son
The father is 48 years old, and the son is 23. When will the father be twice as old as the son? - Remaining 4989
The seller sold 40% of the fruit on the first day, 2/3 of the rest on the second day, and the remaining 20 kg on the third day. How much fruit did he sell in those three days? - Nice prism
Calculate the cuboid's surface if the sum of its edges is a + b + c = 19 cm and the body diagonal size u = 13 cm. - Grandfather The grandfather is three years older than the grandmother. The average age of the grandmother, the grandfather, and their seven grandchildren is 28. The grandchildren have a total of 105 years. Calculate how old grandfather is.
- Earlier 4970
Tomáš and Lukáš read the same book. Tomas read 21 pages a day and read it one day earlier than Luke, who read 18 pages a day. How many pages did the book have? - Highway
Six trucks will be used to build the roadside for 18 days. After three days, the company sent two more trucks to make. How long will it take for the material to move? - Czech crown salary
The employee's monthly salary is CZK 10,800. In the course of the year, the bulk salary increased by CZK 500. Calculate which employer increased month (1 ... 12) if its annual income was 133,600 CZK. - Prices prices
Factory reduced the meter of the textile by CZK 42, so 4 meters of the new price was 20 CZK cheaper than 3 meters of the original price. What was the original and new price of the textile? - Oil tank and pipes
Two oil pipelines can fill the underground oil tank. The first is filled in 72 hours, and the second in 48 hours. How many hours from when the first pipeline began to fill the oil is necessary to start filling it with the second to fill in 1 and 1/2 days? - Workers 4949
The three workers will dig one big pit in two days. How many workers would dig seven large pits in three days? - Two workers
Two workers make 138 parts/items. The first one produces 30% more than the second. How many items will each produce? - Baker
The baker needs 10 kg of flour to make 12 kg of dough. How much flour does he need to make a 100 kg dough? - Every day 7 pages
Anelka reads the book seven pages every day. When she reads one more page a day, she will read it three days earlier. How long will Adelka read a book? How much does a book of pages have? - Linear function
What is the equation of linear function passing through points: a) A (0,3), B (3,0) b) C (-2,-6), D (3,4) - Intersection 4925 Determine the intersection of functions. a) y = 2x + 3, y = -x + 4 b) y = 3x + 7, y = -2x-3
- Midnight
How many hours will it be if the time elapses from 8:00 is equal to 2/5 of the time that will pass until midnight? - Distribution 4907
A continuous random variable X is specified: distribution function, specify the parameters a; b so that the function F (x) is continuous and was the distribution function of the random variable X and express f(x). P (X - Immediately 4906
It is Monday at 10 a.m. Luboš has returned from the doctor, who prescribed him tablets: he will take the first one immediately, the next two days he will take them after six hours, and the rest after eight hours. When will Luboš collect all the tablets if
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