Equations practice problems - page 184 of 242
Number of problems found: 4827
- Increase the number
I think the number zero is obtained by increasing it by four, then reducing it by seven, adding nine, and taking 50. Which number do I think? - Angle in RT
Determine the size of the smallest internal angle of a right triangle whose sides constitute the sizes of consecutive members of arithmetic progressions. - Exponent value
Determine what y equals in expression (16^y): 5 = 0.4 - Geometric progression
Determine the quotient and the first member of GP if a3 = 0.52 and a1 + a2 = 0.39. - Part-time earnings
Petr got a three-day part-time job for the holidays. On the first day, he earned 1/4 of the total amount. On the second day, 2/5 of the last two days, and on the third day, he made CZK 450. How much did you earn in total? - Geometric progression
Determine the quotient and the first member of GP if a3 = 0.39 and a1 + a2 = 0.39. - Angle
Determine the size of the smallest internal angle of a right triangle which angles forming the successive members of the arithmetic sequence. - Arithmetic progression
Determine the twenty-first term and the difference AP if a1 = 0.12 and a1 + a2 = 0.42. - Ball count
Roland has 490 balls. If he gave 145 bullets to Marek, he would still have 100 more bullets than Marek. How many balls did Marek have at the beginning? How many shots do they have together? - Z9-I-4
Kate thought of a five-digit integer. She wrote the sum of this number and its half in the first line of the workbook. Write a total of this number and its fifth on the second line. She wrote a sum of this number and its one nines on the third row. Finall - Unknown number
16% of the unknown number equals the square root of the number 25. Find this unknown number. - Diagonal of the rectangle
Calculate the rectangle's diagonal, whose area is 54 centimeters square, and the circuit equals 30 cm. - Geometric progression
Find the quotient and the sixth term of GP if a1 = 420, a1 + a2 = 630. - Arithmetic progression Determine the fourth term and the difference AP if a1 = 3.2 and a2 + a3 = 7.
- Unknown number 7
16% of the unknown number is 21 less than the unknown number itself. Determine the unknown natural number. - Exponent value
Determine what z equals in the expression 169^z = 2 · 6.5 - Exponent equation What is the solution of the equation: 2^x = 2/64
- Geometric progression Determine the second term and the quotient GP if a3 = 48.6 a1 + a2 = 6
- Work time
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. - Number difference
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.
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