Equations practice problems - page 70 of 249
Number of problems found: 4965
- Two companies
Two companies completed a job together in 100 days. The first company alone could complete the job in 150 days. How long would the second company take to complete the job alone? - Chess tournament players
In an amateur chess tournament, everyone plays with everyone. There are a total of 171 chess games on the program. How many players take part in the match? - Eva brigade earnings
Eve received money for a brigade. She saved three-fifths of the money, lent one-quarter to her sister, and bought a T-shirt for the remaining 180 CZK. How much CZK did Eve earn on the brigade? - Dividing rod
The 3 m long rod should be divided into two parts so that one is 16 cm longer than the other. Find the lengths of both parts. - Plants
The number of germinated plants increased by 50% to 300 from morning to evening. How many plants germinated in the morning? - Aquaman
Aquaman Kebule shopped at Captain Nemo's fishmonger, where the prices of all goods were listed in whole scales. If Kebule bought 2 crayfish, 3 clams, and 1 pike, he would pay 49 scales. If he bought 5 more crayfish, 11 clams, and 1 pike, he would pay 154 - Side wall planes
Find the volume and surface of a cuboid whose side c is 30 cm long and whose body diagonal forms angles of 24°20' and 45°30' with the planes of the side walls. - How many
How many euros will Mr. Kováč earn if he gives two-fifths of his earnings to repay the loan, one-quarter of his earnings for an apartment and a telephone, and he has 350 euros left for other expenses? - Similar frustums
The upper and lower radii of a frustum of a right circular cone are 8 cm and 32 cm, respectively. If the altitude of the frustum is 10 cm, how far from the bottom base must a cutting plane be made to form two similar frustums? - Mother daughter cleaning
The daughter needs 12 hours to clean up after the painters. The mother could do the same cleaning in 8 hours. How long will it take to clean up after the painters if the mother starts work only after the daughter has completed 2 hours? - 11990 perimeter RT
A right triangle has integer side lengths and a perimeter of 11990. In addition, we know that one of its perpendiculars has a prime number length. Find its length. - Peter and Martin
Peter and Martin played by 67 balls. After the game, Peter had nine more balls than Martin. How many balls did Martin win? Solve the help of the equation. - Double of principal
How long will it take for the principal to double at 12.25% annual interest? - 4 digit number
I am a four-digit number. My thousand period has a first digit, which is thrice the second digit, and the second digit is two more than the third digit. All the rest of the digits are zeros. What number am I? - The whole number
A whole number is increased by seven, and the obtained number is multiplied by five. The result is 45. Find this number. - The Fraction The denominator of a Fraction is greater than the numerator by 4. if 11 is added to the numerator and one subtracted from the denominator, the value of the fraction obtained is 7/3. What is the original fraction?
- Brother age
One brother talks about his younger brother: "2 years ago, I was three times my brother's age. In 3 years, I will be twice as old as my brother." How old is each brother now? - Graph move
When y=2x² has moved 2 units to the left and 3 units upward, what is the graph equation? - Peter brother age
How old is Peter's brother now if he has four times as many in 15 years as he did 15 years ago? - Village bought
A village bought in the initial year for winter maintenance needs a tractor at a purchase price of 70 000 €. Its value decreases exponentially and after two years has a value of 49 000 €. The maintenance costs grow exponentially, in the first year they ar
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