Equations practice problems - page 63 of 249
Number of problems found: 4965
- The noon-time
The noon-time temperature was 29 °F. It was 4 °F lower than predicted. Write and solve an equation to determine the predicted noon-time temperature. - Gathering of solvers
The best solvers of the mathematical olympiad and their leaders came to a gathering. They all stayed in a pension with two-bed and three-bed rooms, such that all beds in these rooms were fully occupied. The two-bed rooms were exactly a third of all rooms - In a bakery
In a bakery, a bun costs 2 CZK more than a roll. Petr bought 4 buns and 8 rolls and paid exactly 62 CZK. a) Calculate the price of one bun in CZK. b) Calculate in CZK how much Petr would pay to buy 2 buns and 2 rolls. c) Determine how many rolls Petr coul - Potato warehouses
The company Vysočina has two potato warehouses. In the first warehouse there are three times more potatoes than in the second. From the first warehouse, half of the stored amount of potatoes was taken away, and there remained 90 tonnes of potatoes more th - Consecutive number groups
Determine the group of numbers for which the following relations hold: a) The sum of the searched three consecutive even numbers equals 978. b) The sum of the searched four consecutive odd numbers equals 312. - Class girl count
Girls are 12 more than boys, and boys represent 30% of all students. Find how many girls are in the class. - Janka Katka meeting
Jane and Kate live in villages 16 km away. They agreed to meet precisely halfway. Jane was driving at a speed of 4 km/h. Kate came out 30 minutes later. At what speed must Kate drive to fulfill the agreement? - Triples
The triplets Jana, Jan, and Judy have saved a total of 180 CZK. Jana has saved three times as much as each of her two siblings. Judy and Jan have saved the same amount. a) Determine the ratio of the amounts saved by all three siblings in the order Jan, Ju - Principal interest months
How many months will it take for a principal of 5,000 euros to earn 350 euros in interest at 5% p.a.? - Mr. Fish
Mr. Fish paid 1,080 CZK for three Christmas carp. The difference in weight between the first and second carp, and between the second and third carp, was exactly 80 dag in each case. The price of 1 kg of live carp was 120 CZK. a) Calculate the weight of ea - From peanuts
From peanuts priced at 160 CZK/kg and almonds priced at 200 CZK/kg, 20 kg of a nut mixture priced at 190 CZK/kg is to be prepared. The price of the mixture is determined by the ratio in which the nuts are mixed. a) Determine how many kilograms of each typ - Stamp collection total
In his stamp collection, Randy had half of the Czech stamps, a third of Slovak stamps, and just 128 overseas stamps. Randy did not collect any other stamps. Calculate how many stamps Randy had in the collection. - Goods shipment price
The price of one piece of goods is 450 CZK, and the price of transport is 90 CZK. They paid Svoboda a total of CZK 10,440 for the shipment. Calculate how many pieces of goods they ordered Svoboda. - Alloy Cu+Pb
An alloy of copper and lead is a mixture of these metals in a ratio of 5:2 (respectively). Calculate in kg how much a piece of this alloy weighs if it contains just 150 kg less lead than copper. - Relative motion
The boat moves along the river at a speed of v1 = 5 km/h and upstream v2 = 2 km/h What is the current P's and boat L's speed relative to the water? - Bacteria test tube Bacteria in a test tube divide into two every second, with each new bacterium having the same volume as the original. At exactly midnight, the test tube was full. At what time was the test tube half full?
- Apple worker combing
Two temporary workers comb apples from 15 apple trees in 5 hours and 20 minutes. After two hours, three other temporary workers came to help them. How long did it take to comb apples from these 15 trees? - Peter Pavel age
Peter was twice as old as Paul. 4 years ago, Peter was three times as old than Paul. How old are they now? - The number 5
The number of hours per week the television is turned on is determined for each family in a sample. The mean of the data is 35 hours, and the median is 31.2 hours. Twenty-four families in the sample turned on the television for 20 hours or less for the we - Skate discount price
Skates have fallen by 36% after the winter season on sale. Their price after the discount was 48 euros. What was the original price?
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