Equations practice problems - page 58 of 239
Number of problems found: 4765
- Combinations - elements
If we increase the number of elements by 1, the number of combinations of the third class without repetitions increases by 10. How many elements do we have? - Madam 2
Madam Lowa bought four cakes and four puffs for $16. Each cake costs $0.50 more than each puff. How much did one puff cost? - Solutions 70424
To what extent do we need to mix 82% and 54% solutions to get a 76% solution? - Improvements 70344
Two workers work equally efficiently and together can complete a given task in 5 hours. One worker improved his machine, changed his workflow, and increased his output by 40%. How long will it take both workers to complete the given task? - Performance 70314
Of the 17-member team, two workers fell ill. By what percentage do others have to increase their performance to do at least as much as when the team is working in full force? - Rectangles 70304
How many rectangles with side lengths expressed in natural numbers have an area of 96 cm²? - Quadrilateral 4S prism
The edge lengths of a quadrilateral prism are in the ratio a:b:c = 2:4:5. The surface of the prism is 57 cm². Calculate the volume. - Directions 70274
Two runners train on a circular track that is 375 m long. When they start from the same place and run in opposite directions, they meet in 30 seconds. When they run in the same direction, they are 15 m apart in 30 seconds. What is the average speed of eac - Kilometers 70234
We're going to Grandma's. We have already driven 30 km. We have 1/7 of the way ahead of us. How many kilometers is Grandma from us? - Together 70014
Matej and Anton are 44 years old together. Matej is twice as old as Anton was when Matej was half as old as Anton will be when Anton is 3 times older than Matej was when Matej was 3 times as old as Anton. - Consignment 69944
During the delivery of the goods, the postman delivered one-third of the consignment on the first day, two-fifths of the rest on the second day, and 300 pieces on the third day. How many goods were in the shipment? - Circumference 69934
You know the ratio of the circumference of the circle to the area is 4:9. What is the circle's diameter? - Consecutive 69904
The three numbers that make three consecutive members of an arithmetic sequence have a sum of 60 and a product of 7500. Find these numbers. - Blank denominator
1/4 + 5/blank =2/3 Find a blank number. - Blank number w minus
5/2 - blank =1/3 What is the blank number? - Blank number 5/2 + blank =1/3 What is the blank number?
- Increase 69844
In April, a loaf of bread costs 42 CZK. Compared to March, this is an increase of 5 percent. What was the price a month ago? - Circulation 69814
The economy's money is 600 PJ (monetary units). The proportion of cash is 5%. All cash is in circulation, and none is hoarded. The optimal reserve ratio is 12%. Calculate the money multiplier - Kilograms 69724
The hardware store sold 1 kg of nails for CZK 400 and 1 kg of screws for CZK 800. How many kilograms of nails and how many screws did they sell if they sold a total of 5 kilograms and earned CZK 3,200. - Tickets 10
There are two types of zoo tickets: A for adults and C for children and senior citizens. The cost of 7 type A and 4 type C tickets is 46 €, whereas the cost of 8 type A and 6 type C tickets is 57 €. Calculate the cost of 5 type A and 3 type C tickets.
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