Equations practice problems - page 162 of 242
Number of problems found: 4827
- Suzan
Susan's age will be after 12 years, four times as much as twelve years ago. How old is Susan now? - Crumbs Brought by Ants
In the evening, four ants counted the crumbs they had brought. The first ant had 1.5 times more than the second, the second ant twice less than the fourth and the third ant twice more than the second. They had 26 crumbs in total. How many crumbs did the t - Number unknown
Adela thought of the two-digit number. She added it to its ten times and got 407. What number does she think? - Unknown numbers
The sum of two consecutive natural numbers and their triple is 92. Find these numbers. - Theatre performances
A total of 15,744 CZK was collected as admission for three theatre performances. The revenue from the second performance was 20% higher than the revenue from the first performance and the revenue from the third performance was 10% lower than the revenue f - Substitution
Solve equations by substitution: x+y= 11 y=5x-25 - Ľé sweets
There are 20 sweets in the bag. Some are chocolate, other coconuts, and the remaining marzipan. Chocolate is four times more than coconut. Marzipan's less than chocolate. How much is in a bag of coconut sweets? - Perpendicular sides
In a right triangle, one perpendicular is 1 m shorter than the hypotenuse. The other perpendicular is 2 m shorter than the hypotenuse. Find the lengths of all sides of the triangle. - Soccer ball
How much does a soccer ball cost, and 6/7 of the price is € 12? - Unknown variable Find the number x, which, if it increases by 2, then its square increases by 21 percent.
- Ratio-cuboid
The lengths of the edges of the cuboid are in the ratio 2:3:6. Its body diagonal is 14 cm long. Calculate the volume and surface area of the cuboid. - Solving Linear Equation
Solve the equation: 0.5 • (3+ x) -0.2 • (0.5x-5) = 0 - Red balls
The bag has three red, 12 blue, and eight green balls. If we want the probability of pulling out the red balls to be 20%, how many red balls must we add to the bag? - Vacation ticket
Alena and Marta want to go on vacation together. Alena lacks CZK 300 to buy the selected ticket, and Marta has 4 times that amount left over. We know that Marta has 50% more CZK available than Alena. How much does a ticket cost? - Wagons and cranes
The same cranes are unloading 96 wagons. There would be fewer wagons for each crane if there were two more cranes. How many cranes were there? - Competitors
In the first round of the slalom, 15% of all competitors dropped out, and in the second round, another 10 competitors dropped out. In total, 40% of all competitors dropped out. What was the total number of competitors? - Chess reward
A reward of 1200 CZK is prepared for the 4 best champions in the chess tournament. It will be divided so that the second gets half of the first, the third half of the second's reward, and the fourth half of the third. How many CZK will each person receive - Finding x for Profit
P (x) = 15x- (5x + 10,000) specify x so that P (x) = 0 - Tracksuit savings
The tracksuit became cheaper by 15% later on sale and later by 10%. How many euros did Janka save if she bought this set after the second discount and paid € 45.9? - Machine price
After technical improvements, the washing machine cost € 630, which is a fifth more than the original price. How many euros did the washing machine initially cost?
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