Equations practice problems - page 243 of 246
Number of problems found: 4913
- Three numbers
Using the digits 1–9, form three-digit numbers such that their sum is as small as possible. What is the value of this sum? (Use each digit exactly once.) - Tippler
Bottle with cork cost 6.6 Eur. The bottle is 0.6 euros more expensive than the cork. How much are a bottle and the cork? - Brick
The isosceles scale has all bricks; the second weight is 1 kg, and the 1/5 of brick is on one side. The balance is in equilibrium. What is the weight of a brick? - Book
The printer used 4201 digits to number the pages of the thick book. How many pages does this book have? - Equation
Equation f(x) = 0 has roots x1 = 25, x2 = 64, x3 = 9. How many roots have equation f(x²) = 0? - Function
For linear function f(x) = ax + b is f(19)=141; f(20)=168. Calculate m, if f(m) = 2018. - Denominator
Calculate the missing denominator x: (119)/(17) = (7)/(x) - Inflation
What is better for people (employees)? ... - Triangle P2
Can a triangle have two right angles? - Strange x
For what x is true x=19x? - Product
The product of two consecutive odd numbers is 1295. What are these numbers? - Sequence
Calculate what member of the sequence specified by (5n-2+15) has value 20. - Pumps
A tank is filled by two pumps working together in 23 minutes. The first pump alone fills the tank 37 minutes faster than the second pump alone. How long does it take the first pump to fill the tank on its own? - Diofant 2
Is equation 1140x +876y = 48 solvable on the set of integers Z? - Diofant equation In the set of integers (Z), solve the equation: 212x +316y =0 Write result with integer parameter t in Z (parameter t = ...-2,-1,0,1,2,3... if equation has infinitely many solutions)
- Roots
Find the quadratic equation absolute coefficient q, that the equation has a real double root and the root x calculate: 5x ² +9x + q = 0 - Biquadratic
By introducing a new variable, solve the biquadratic equation: - x 4 +277 x² -15876=0 - Euler problem
Someone buys a number of towels for a total of 720 tolars. If for the same amount of money they could buy 6 more towels, each towel would be 6 tolars cheaper. How many towels were originally bought? - Rectangular field
One dimension of a rectangular field is 168 m greater than the other. When each side is increased by 9 m, the area of the field becomes 2187 m². Find the dimensions of the field. - Determine the number
Determine the number x that x+8 is (7)/(5) from one half of 7 x -1.
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