Equations practice problems - page 183 of 239
Number of problems found: 4769
- Unknown number 7
16% of the unknown number is 21 less than the unknown number itself. Determine the unknown natural number. - Expression 3887
Determine what z equals in the expression 169^z = 2 · 6.5 - Equation: 3881 What is the solution of the equation: 2^x = 2/64
- Determine 3876
Determine the second term and the quotient GP if a3 = 48.6 a1 + a2 = 6 - Independently 3874
Josef would do the work himself in 5 hours. Josef and Michal would do the work together in 3.5 hours. Determine how long it would take Michal to do the job independently. - Difference 3870
The difference between the two numbers is 16. They are natural numbers. The first number is 17 times larger than the second number. Identify both of these numbers. - 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. - Determine 3861 Determine the value of f: 0.49^f = 0.7
- Determine 3860
1/6 of y equals 8.6. Determine y. - Exponential 3858
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. - Four-thirds 3852 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?
- Determine 3851
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. - Smaller 3848
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? - Directorate 3845
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 - Blueberries 3843
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? - Determine 3841 Determine the value of x: 2^x = (2-3): 2
- Determine 3840 Find z if 12^z = 1/144
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