Equations practice problems - page 27 of 210
An equation is a statement that asserts the equality of two expressions, which are connected by the equals sign =. Solving an equation containing variables consists of determining which values of the variables make the equality true. The variables for which the equation has to be solved are also called unknowns, and the values of the unknowns that satisfy the equality are called solutions of the equation.Number of problems found: 4195
- Seven
Seven dwarfs will cut 420 stumps in 15 hours. After five hours, the two dwarves disappear discreetly. How many hours will the remaining dwarves complete the task? - Tourist cottage
The tourist cottage has 11 rooms for 16 guests. Some of them are doubles, some singles. How many are double rooms and how many are single rooms? - Four-digit number
Find all four-digit abcd numbers with a digit sum of 12 such that ab-cd = 1 - The missing angle
Find the missing angle in the triangle and then name the triangle. Angles are: 95, 2x+15, x+3 - Far country
In a country far away, the value of 3 pesos is 12 centavos, more than the value of 1 peso. How many centavos is 1 peso worth? - Unknown number
I think the number. I'll reduce it to its one-third. The result is then increased by one-third, and I get the number 12. - Two bricks
One brick weighs 1kg and half a brick. How many kilograms weigh two bricks? - Integer
Find the integer whose distance on the numerical axis from number 1 is two times smaller than the distance from number 6. - Value 4
If 5/18 of some number = 425, what is the value 13/18 of this number? - Dropped sheets
Three consecutive sheets dropped from the book. The sum of the numbers on the pages of the dropped sheets is 273. What number has the last page of the dropped sheets? - Complementary angles 2
Two complementary angles are (x+4) and (2x - 7). Find the value of x. - T-shirts and hat
Five t-shirts and a hat cost £62.00 Two t-shirts and a hat cost £29.00 How much does a t-shirt cost? How much does a hat cost? - Boys and girls
There are 28 girls in the hall. 5/7 of all children are boys. How many children and how many boys are there? - Boys and girls
There are 48 children in the sports club. Boys are ten more than girls. How many girls go to the club? - Rabbits 3
Viju has 40 chickens and rabbits. If, in all, there are 90 legs. How many rabbits are there with Viju? - Father and son
Father is 48 years old, and the son is 23. When will the father be twice as older as a son? - Have solution
The sum of four consecutive even numbers is 92. Determine these numbers. - Rhombus
If we increase the rhombus side by 2.4 cm, its perimeter is 20 cm. How long was the side of the rhombus? - Parallelogram
Side a of a parallelogram is twice longer than side b. Its circumference is 78 dm. Calculate the length of the sides of a parallelogram. - Elements
If the number of elements is decreased by two, the number of permutations is decreased 30 times. How many elements are?
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