Equations practice problems - page 74 of 249
Number of problems found: 4965
- Four-digit number puzzle
Find all four-digit abcd numbers to which abcd = 20. ab + 16. cd, where ab and cd are double digits numbers from digits a, b, c, and d. - Linear equation system
Write a system of 3 linear equations with 3 variables (x. Y. z), which has all non-zero coefficients and a solution x= 2+t, y=3-2t, z=t, where t€R. The fact that the system has all non-zero coefficients means that all numbers in the extended matrix of the - House construction savings
By improving the work process, constructing a family house saved CZK 111,600, which was 5% of the total budget. What was the original budget for a family house? - Martina
Martina is solving the equation 4x - 11 = 2x + 391. Here are the first steps of her solution. 4x - 11 = 2x + 391 2x - 11 = 391 2x = 402 What did Martina do to get 2x - 11 = 391? - Marshall
Marshall earns a salary of 36,000 each year and receives a $4000 raise. Jim has a salary of 51,000 yearly, receiving 1500 bonuses. How many years will it take before Marshall and Jim are on the same salary? - Given 2
Given g(x)=x²+x+1 where x=t². What is g(t²)? - A concert
A concert will take place at the stadium. If they sold 1/4 ticket on the first day, 2/5 of the rest on the second day, and 17,100 tickets left in the box office. What is the capacity of the stadium? - Insert
Insert five numbers between 8 and 27 such numbers that, with two given ones, they form the first seven members of the geometric sequence. - AP - consecutive members
In the arithmetic sequence, a1 = 4.8, d = 0.4. How many consecutive members, starting with the first, need to be added so that the sum is greater than 170? - The perimeter
The perimeter of the triangle is 24, and the sides are integers and form an arithmetic sequence. Specify the side sizes of this triangle. - Skateboard
Petr wanted to buy a skateboard but had no money, so he asked his father and two brothers for help. His father gave him half of the amount his brothers gave him. His older brother gave him a third of what he received from the other two. His younger brothe - Laptop discount price
The shop reduced the laptop by 20% to CZK 10,000. How much did CZK initially cost? - KOH
How many g of 20% KOH solution do we need to mix with 500 g of 30% KOH solution to obtain a 25% KOH solution? - Straight-line depreciation
Olsen Inc. Purchased a $580,000 machine to manufacture a specialty tap for electrical equipment. The tap is in high demand, and Olsen can sell all it can manufacture for the next ten years. To encourage capital investments, the government exempts taxes on - Trip increase discount
The trip after the increase of 145 euros cost 500 euros. How much did it cost? The trip, after a discount of 145 euros, cost 500 euros. How much did he face before the discount? - Company order fulfillment
Two engineering companies have the same production program. The first company would fulfill their orders in 20 days. The second company in 16 days. How long will the companies fulfill the order if the first company starts working 2 days earlier? - The temperature 14
The temperature is 12 °C lower than 4 hours ago. a. What is the average temperature change per hour? b. Write an integer equation for the situation. - Two numbers
One number is 79 more than the other. If we divide the larger number by the smaller one, we get the quotient five and the remainder 11. Determine both numbers. - Washing machine
We paid an advance payment of 1/5 of the total price of the washing machine and then installments of 320 €. How much did the washing machine cost? - Lucka
Lucy reads a thrilling novel about the holidays. She would read the book one day earlier if she read 16 pages daily instead of 14. How many pages does the novel have in total?
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