Equations practice problems - page 32 of 211
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: 4215
- The midpoint 2
Find the value of x if M is the midpoint of PQ, PQ=10x−7, and PM=14. - Solve 15
Solve equation with fractions 29/12=24/12+?/12 - A solution
A solution of salt and water has 15% salt by weight. From it, 30 kg evaporated, and the solution now contains 20% salt. Find the original quantity of the solution. - Year salary
2/5 of a man's salary is 40,000. What is his salary?
- Full of water
From a tank full of water, a man removed 2/7 of it. If it now contains 450 liters, how many liters does it hold when full? - Angles in a triangle
In a triangle, the first angle measures a number plus 45°, and the second angle is 30° less than the first angle. The third angle is two times the number more than the first angle. What are the measurements of each angle of the triangle? - You buy
You buy two soft drinks and 24 toffees at the tuck shop. One soft drink costs six times as much as one toffee. The total cost of your purchase is R54. Determine the cost of one toffee. - I spent
I spent 3/8 of my money in one shop,1/4 in a second shop, and 1/8 in a third shop. I then had $5 left. How much did I start with? - Cows and pigs
There are 3/4 as many cows as pigs on an animal farm. If there are 35 pigs and cows on the farm, how many of them are pigs?
- Chocolates left
What is the equation for Mark? He had 84 boxes of candy to sell, half of which were dark chocolate and the other half white chocolate. He sold 75% of dark chocolate and 40% white. How many did you have left over? - A father 2
A father gave 1/3 of his land to the daughter and the remainder to the son. Son donates 3/4 of his land for the playground. He built a house in half of the remaining area, and the other half was sold for rs.1 million. 1) give the son's portion as a fracti - Add number
Suppose the same number is added to the one near raider and denominator of math fractions seven and nine. The result is .9. What is the number? - One angle
One angle is 10 degrees more than four times the measure of the other angle. Together they have a sum of 120 degrees. What is the measure of each angle? - Problem
Problem Solving: The sum of three consecutive numbers is 93. What is the difference between the largest and the smallest number?
- A Piece 6
A piece of material measures 40 inches. Sara cuts the material into two pieces, one measuring 14 inches. Write an addition equation that we could use to find the length of the other piece of the material. - After 6
After buying half a dozen eggs, three cans of sardines, and a pack of milk, Enya received a change of P0.50 from her P200. The pack of milk costs P105, and a can of sardines costs P16.50. How much is the price of an egg? - Tanya
Tanya bought three adult tickets and one children's ticket to a movie for $22.10. Li bought five adult tickets and four children's tickets for $43.60. Find the cost of one adult ticket and the cost of one children's ticket. - Find all
Find all right-angled triangles whose side lengths form an arithmetic sequence. - Score on tests
On the first six tests in his Mathematics subject, his scores were 92, 82, 86, 93, 96, and 91. If he took the seventh test and raised the mean of his scores by exactly one point, what is his score on the 7th test?
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