# Algebra - practice problems

#### Number of problems found: 4664

- What number

What number must be added to both the numerator and denominator of 3/5 to get 5/6? - The sum 30

The sum of 8 times a number and 5 times another number is 184. The first number minus the second number is -3. What are the numbers? - A mixed school

In a mixed school, 5/9 of the pupils are boys. If there are 128 girls, how many pupils are there altogether? - Unknown 80643

If we add 17 to twice the unknown number, we get 67. What is the unknown number? - Unknown 80642

If we add 6000 to half of the unknown number, we get 9000. What is the unknown number? - Unknown subtracted

When a number is subtracted by 3.75, the difference is 6.25. What is the number? - Hakeem

Hakeem subtracted 8 from a number, then multiplied the difference by 4/5. The result was 20. Write and solve an equation to find the number, x. - Missing number 2

When 10 is added to the product of 8 and a certain number, the result will be 50. What is the value of a missing number? - James 6

James and Lisa shared some sweets. James took 2/7 of the sweets, and Lisa took the rest. If James took 18 fewer sweets than Lisa, how many sweets did they have altogether at first? - Calculating 80571

During the race, the cyclists covered 3/7 of the total length and had 80.5 km to go. How long was the race, and what part of the race did they complete at 55 km? An example of calculating in fractions. - Apprentices 80561

The master produced a quarter more products than one of his apprentices. Together they produced 45 products. How many products did the apprentice make, and how many did the master make? - Michael 6

Michael was assigned math problems to complete for his weekly homework. So far, he has completed 28 problems, which is 2/7 of the total number of math problems he was assigned. How many total math problems was Michael assigned for homework? - For what

For what value of x is -5x+8=-6 a true statement? Write your answer as a decimal. - Cake 9

1/3 of a cake costs 3$ and 50 cents. Then how much does the whole cake cost? - Aquariums 80526

Mirko has a total of 137 fish in three aquariums. He has 19 more fish in the largest aquarium than in the medium. There are 5 fewer fish in the smallest than in the middle one. How many fish does Mirko have in the smallest aquarium? - Has infinity many solutions

Solve the equation and determine the type of solution the equation has. Select all possible answers. 6y+9=3(2y+3) - Two tariffs

You pay $20 and $0.05 per minute, and somebody else spends $15 and $0.25 per minute. How long would it take for both of you to spend the same amount? - Solve 18

Solve simple equation: 3x = 5x + 6/2x + 3 - Eighty-two 80493

The sports club has 302 members. Ten times more members play soccer than tennis. Just one of the sports (F and T) is played by 222 members. Eighty-two members do not play football. How many members of the club play football? How many members play tennis? - Parakeets 80471

Mr. Spacek keeps birds. It has more than 50 and less than 100. Parakeets make up a ninth and canaries a quarter of the total. How many birds did he keep?

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