Equations practice problems - page 185 of 242
Number of problems found: 4827
- Exponential equation
Determine the value of having y in the expression (3^y): (4-1)=36. Unknown y is a natural number greater than zero. - Unknown number 5
Daniel thinks of an integer. When he changed this number to a ratio of 2:5, he got the number 2.8. Determine what number Daniel thinks. - Exponent value Determine the value of f: 0.49^f = 0.7
- Number calculation
1/6 of y equals 8.6. Determine y. - Exponential equation
Determine m (solve the exponential equation - unknown in the exponent): 0.25 μm = 0.5 - Unknown number 6
Determine x if 1/6 of x equals 2/5 of the number 24. - Number puzzle Anton said: I have a natural number x. I'll get three times as much if I increase it to four-thirds. What number did Anton mean?
- Work time
Michal would cut the fence himself in 12 hours. It would take Michal and Juraj 8 hours together. Determine how long it would take for Juraj to do the job. - Number ratio
Dano had a natural number in mind. If he changed this number to a 2:5 ratio, he would get the number 24 smaller. What number did Dano think? - School reward
There were 560 pupils in the school. They rewarded 8% of all boys and 10% of all girls for excellent results. The directorate stated that teachers rewarded 9% of all pupils. How many boys and how many girls attended the school? - Lighthouse
The man, 180 cm tall, walks along the seafront directly to the lighthouse. The male shadow caused by the beacon light is initially 5.4 meters long. When the man approaches the lighthouse by 90 meters, its shadow is shorter by 3 meters. How tall is the lig - Blueberry collection
Peter, Alex, and Clara collected 112 blueberries. Peter collected two more blueberries than Clara. But Alex collected 34 less than Clara. How much does each of them collect? - Exponent equation Determine the value of x: 2^x = (2-3): 2
- Exponent value Find z if 12^z = 1/144
- Difference of two number
The difference between the two numbers is 20. They are positive integers greater than zero. The first number raised to one-half equals the second number. Determine the two numbers. - Square root puzzle
Find a natural number whose square root is 27 times its square root. - Unknown number
Identify an unknown number whose 1/16 is 10.5, less than half of it. - Equation Solve the equation: 1/2-2/8 = 1/10; Write the result as a decimal number.
- Two numbers The sum of the two numbers is 48. 12.5% of the first number equals exactly 4. Find both of these numbers.
- Exponent value Determine y: 32^y = 2
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