Equations practice problems - page 170 of 241
Number of problems found: 4815
- Cylinder surface
The area of the rotating cylinder shell is half the area of its surface. Calculate the surface of the cylinder if you know that the diagonal of the axial section is 5 cm. - Square diagonal
Calculate the diagonal of such a square, which holds that its area is equal to its perimeter (without considering units numerically ...). - Car travel
A passenger car traveling at a speed of 60 km/h arrived from place A to place B one and a half hours earlier than a truck traveling at 40 km/h. How far apart are placed A and B, and how long did the car travel? - Bags
The first bag weighs 18 kg, the second bag is one-third lighter than the first, and the third bag has three times less than the weight of all three bags. Determine their weights. - Bicycles
You're the owner of the transport's learning playground. Buy bicycles of two colors, but you've got to spend accurately 120000 CZK. The Blue bike costs 3600 CZK and the red bicycle 3200 CZK. - Family
Mom is 42 years old, and her daughters are 13 and 19. After how many years will a mother become as old as her daughter together? - Fraction equation
Solve the equation: 1/c - 3/(2c) = 3/4 - Apple harvest
Pupils collected a total of 42 kg of apples. Peter harvests half as much as Zuzka and Martin, a third less than Petr. How much did each of them harvest? - Number puzzle
I think the number when I multiply the imaginary number by three, we divide by the number 4 from the product of subtraction 4, and I add the imaginary number again to the proportion of 4. Which number do I think? - Youngest sibling Peter, Leo, and Ivo are siblings. Peter is three times older than Leo, and Leo is three times younger than Ivo. They are 28 years old together. How many years is the youngest of them?
- Hamsters and guinea pigs
In the morning, they had five times more hamsters than guinea pigs in the store. After selling 4 guinea pigs and 4 hamsters, they were left with four times as many hamsters as guinea pigs. How many hamsters and guinea pigs did they have together in the sh - Percentages 5
$5.25 is 7 1/2% of what number? - Flowers + orchards + lawn
The garden around the flat house is divided as follows: 30 percent flowers, 35 percent orchards, and 150 square meters from the lawn. What is the total area? - Quadratic inequation If 5x + x² > 100, then x is not
- Five-sevenths of a volume
Forty-two liters of water fill the barrel to two-thirds of its volume. If it is filled to five-sevenths of a volume, how many liters of water do we need to add? - Block volume
The sketch shows a network of blocks with a surface size of 150 cm². Calculate its volume. (MONITOR 9 - 2005/30 question.) - Family members ages The son, mother, and father are 96 years old. A mother is 23 years older than her son and five years younger than his father. How old is a son?
- System equations
Determine the smaller root of the root pair of the system of equations. 5a + 4b = 11 3a - 2b = 11 - Number property
Which number has such a property that if we increase it by 7, we get a number with the same absolute value as the original number? - Goats and geese
There are five animals in the yard. There are only goats and geese. They have a total of 14 legs. How many geese and how many goats are in the yard?
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