Equations practice problems - page 232 of 241
Number of problems found: 4815
- Trio
A trio of workers earns 770 euros. Money is divided by the work that each of them makes. The first received twice the second, and the second received three times more than the third. How many got everyone's workers? - Interest
What is the annual interest rate on your account if we put 43280 and after 198 days received 44293.9? - Hostel
Students are accommodated in 18 rooms. Rooms were 4 and 6 bed. How many rooms in which type occupied 92 children there? - Clock
How many times a day do hands on a clock overlap? - Circle
The circle touches two parallel lines, p, and q, and its center lies on line a, which is the secant of lines p and q. Write the equation of the circle and determine the coordinates of the center and radius. p: x-10 = 0 q: -x-19 = 0 a: 9x-4y+5 = 0 - Slope
What is the slope of the line defined by the equation 4x -2y = 10? - Sea water
Seawater contains about 6.5% salt. How many dm³ of distilled water must we pour into 21 dm³ of seawater to get water with 1.2% salt? - Steamship
Between the two ports on the river is going steamship. The journey there and back takes 12:53. Downstream steamship traveling at 19 km/h, upstream 8 km/h. What is the distance between the ports? - Workers
Two workers would fulfill a certain task when working together for 10 days, the first if he worked himself done work in 17 days. How many days will the second worker do the whole job? - Discriminant
Determine the discriminant of the equation: 3x²+19=4 - Product
The sum and the product of three integers are 6. Write the largest of them. - Exp
If sqrt[7](20²-12²) = sqrt[n](256), then n is: - Root
The root of the equation $eq is (equal or greater or less than zero). $radio - Observer
The observer sees a straight fence 100 m long in 30° view angle. From one end of the fence is 119 m. How far is it from the other end of the fence? - VAT
John paid 10 Euros in-store for the purchase. Calculate value-added tax (VAT), which is paid in the purchase, if the VAT rate is 20%. - Mean
If the mean of the set of data 12, 14, 16, 10, 1, 20, 19, 13, 3, 11, 11, 17, 14, 16, 5, x is -10.8, what is the value of x? - Drinking water
A man drinks a keg of water in 21 days, and a woman drinks in 43 days. How many days do they consume a keg together? - Forestry workers
84 laborers have been employed to plant trees in the forest. For 9 hour work a day, they would end job in 38 days. After 18 days, 6 laborers leave. How many days are needed to complete planting trees in nurseries by others if they work 12 hours a day? - Coordinate
Determine the unknown coordinate of the point M [x, 54] of the graph of the function f by rule: y = 3x - Circle
Write the equation of a circle that passes through the point [0,6] and touches the X-axis point [5,0]: (x-x_S)²+(y-y_S)²=r²
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