Equations practice problems - page 189 of 239
Number of problems found: 4769
- Daughter 3610
A mother is six times older than her daughter. The mother will be twice as old as the daughter in twenty years. How old is the mother, and how many are the daughter?
- One-thirds 3606
They baked one-third of the flour on the first day in the bakery and used 75% of the rest the next day. On the third day, 120 kg of flour remained. How much flour did they have in the beginning?
- Internal angles
Find the internal angles of the triangle ABC if the angle at the vertex C is twice the angle at B and the angle at the vertex B is 4 degrees smaller than the angle at vertex A.
- Gingerbreads 3599
Janko and Marienka ate 36 gingerbreads together. Janko ate 14 more gingerbread. How many gingerbreads did Marienka eat? How much did Janko eat?
- Playing match
Romania played a match against Canada. Canada won the duel by six goals. They scored a total of ten goals in the game. Find the number of goals scored by Romania.
- Netherlands 3595
Italy, the Netherlands, and Spain scored 67 goals in the tournament. The Netherlands scored two more goals than Italy, and Spain scored one goal less than Italy. Determine the number of goals.
- Circumference 3589
Calculate the circle's radius if the circumference and area are in a 2:5 ratio.
- Euclid theorems
Calculate the sides of a right triangle if leg a = 6 cm and a section of the hypotenuse, which is located adjacent to the second leg b, is 5cm.
- Discount 3583
The TV cost € 420 after a 9% discount. How much did he cost before the discount?
- Charles Bridge
From 1900 to 1931, Charles Bridge was 15 times older than Frantův Bridge. How old is the Charles Bridge?
- Proportion
Write the following proportion: Eight is to 64 as to 2 is to x
- Numbers
a/ I think of a number. If I add 6 to it three times, I get it five times. Determine this number. b/ I think of a number. If I add 8 to its six times, I get a number that is 10 less than its fifteen times. c/ I think of a number that, when increased by 6,
- Vacation 3568
Novak and Vyborn are leaving from a joint vacation. They agreed that when they were 100 km apart, they would send each other SMS. Novices drive at a speed of 60 km/h, Advanced 90 km/h. They left at 2:00 PM (14:00). What time do they text each other?
- Equation with x
Solve the following equation: 2x- (8x + 1) - (x + 2) / 5 = 9
- Multiply 3560
If we multiply the number by 4, I get a third of the number 36. Specify an unknown number.
- Turnover 3546
They had the same sales plan in Mr. Nový's two stores. In the first store, they exceeded the plan by 23% and in the second by 25%. They had a total turnover of € 66,000. What revenue did each store have?
- Two trains
Two trains are running the same distance. 1st train will travel in 7 hours 21 minutes. 2nd, the train will travel 5 hours, 57 minutes, and 34 seconds, and it is 14 km/h faster than the first train. What are the speeds of trains, and how long is this railw
- Rectangles: 3540
The dimensions of the left rectangle are 4 cm and (x+1) cm. The right rectangle consists of two rectangles: the upper one with dimensions of 3 cm and x cm and the lower one with an area of 7 cm². We know that the area of the left rectangle is the same as
- Difference 3539
We increased the unknown number by 29% once and 41% the second time. The difference between the new numbers was 420. What was the unknown number?
- Inequality: 3538
Example1: Solve a linear equation and perform a test: 6x- (3x + 2) = x-8 Example 2: Solve a linear inequality: 3y + 2 * (y + 1) ≥2y-7
Do you have unsolved math question and you need help? Ask a question, and we will try to solve it. We solve math question.