Algebra - math word problems - page 106 of 305
Number of problems found: 6082
- Crystal water
The chemist wanted to check the water content of the crystallization of chromic potassium alum K2SO4 * Cr2 (SO4) 3 * 24 H2O, which took a long time in the laboratory. From 96.8 g of K2SO - Inequation
Solve the inequation: 5k - (7k - 1)≤ 2/5. (5-k)-2 - Barbara
Barbora goes to school with a backpack that is 2 times more expensive than a bag slipper. If the backpack were 30 euros cheaper, it would cost the same as the bag slipper. How many backpacks cost, and how many bag slippers? - Equation
Equation -3x²+bx -108 =0 has one root x1 = 1. Determine the coefficient b and the second root x2. - Waiting room
In the waiting room are people and flies. Together, they have 21 heads and 102 legs (fly has six legs). How many people and flies are in the waiting room? - Salary
Since the beginning of the year, Mr. Johnson has earned a monthly salary of 833 USD. From which month was his salary increased by 81 USD, and when in the year did he earn 10887 USD (enter as a number from 1 to 12)? - Balls
Michal told Martin: give me one ball, and I'll have twice as you. Martin said: Give me 4, and we will have equality. How many balls does each have? - Homework
Together, the mother and Kate weigh 21.9 kg more than the father. The father weighs 8.1 kg more than the mother. The father weighs 40.2 kg more than Kate. Determine the weights of the father, mother, and Kate. - Money spending puzzle
Someone spent 1/8 of their money on writing paper and three times as much on stamps. He still has 80 hours left. How many pennies did he have before the purchase? - Hostel
Students are accommodated in 18 rooms. Rooms were 4 and 6 bed. How many rooms in which type occupied 92 children there? - Discriminant
Determine the discriminant of the equation: 3x²+19=4 - Trams
Two trams started at the same time from the same place. One tram journey takes 30 minutes, and the second 45 minutes to its final stop. How long will the trams meet again? - Cherries
Cherries in the bowl can be divided equally among 20 or 15, or 10 children. How many are the minimum cherries in the bowl? - Warehouses
To four warehouses is going cement in 50 kg bags, from first one third to the second quarter of the total. The third store got two-thirds of the rest, and the last 120 tons came to fourth. How much cement is in all warehouses, and how much got everyone? - Glasses
Imagine a set of students in your class (number of students: 15) who wears glasses. How many minimum and maximum elements may contain this set? - Class
When Pythagoras asked how many students attended the school, he said: "Half of the students studying mathematics, 1/4 music, seventh silent, and there are three girls at school." How many students had Pythagoras at school? - Purchase
Three buyers paid € 468. The first paid 3-times more than the second, and the third half over the second. How many euros were paid to each of them? - News
From 28 students buy magazines, 10 The economist students, 10 Pravda students, and 18 students don't buy any of these magazines. How many students buy both magazines? - Disjoint
How many elements have union and intersection of two disjoint sets when the first has 1 and second 8 elements? - Fraction
For what x expression (x²-64)/(10x² -80x) equals zero?
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