Equations practice problems - page 238 of 242
Number of problems found: 4827
- Cubes
Surfaces of cubes, one of which has an edge of 42 cm shorter than the other, differ by 16128 cm². Determine the length of the edges of these cubes. - Resistors
Two parallel resistors connected in series give the resulting resistance $R1Ω and $R2Ω. Determine the resistance of these resistors. - Log
If log4 x+ log8 x = log_b x, what is b? - Web server
Calculate how many average minutes the web server is unavailable a year if the availability is 99%. - Crystal
The crystal grows every month at 1.2 permille of its mass. How many months does it take to develop from weight 177 g to 384 g? - Pool
If water flows into the pool through two inlets, it will fill for 5 hours. If the first inlet fills the pool 5 hour longer than the second, how long does it take to fill with two inlets separately? - Equation
How many real roots have equation x³=x? - R triangle
Calculate the right triangle area whose longer leg is 7 dm shorter than the hypotenuse and 10 dm longer than the shorter leg. - Coin
How many 5-cent coins must be put in a row so that the next 5-cent coins after them (above) are rolled on its axis? - Chocolate
Anthony bought 9 same chocolates for 18 Eur. How many euros will he pay for 19 chocolates? - Cow
145 cow consumes 8990 kg hay per day. How many kg of hay was consumed by one cow in one day? - Expression
If it is true that (p + 9 m)/(m) = -19, then the value of the expression (13 p)/(11 m) is: - Factors
Can the expression 4x ² -47.6x +39.6 be factored into rational factors? - Fraction
For what x expression (x²-64)/(10x² -80x) equals zero? - Three numbers
Create from digits 1-9 three-digit numbers with their sum the smallest. What value is the sum of these numbers? (Use each digit only 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.
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