Equations practice problems - page 140 of 240
Number of problems found: 4786
- Administration: 6982
The patient was given the drug, and the measured liver concentration was t hours after administration: c (t) = -0.025 t² + 1.8t. When will the liver product be eliminated entirely? - Manufacturer 6981
The hotelier wanted to equip the dining room with new chairs. He chose the type of chair in the catalog. Only when placing an order did he learn from the manufacturer that they offered every fourth chair at half price as part of the discount offer and tha - Discount
The dress was discounted by CZK 115, which was 12% of the original price. What is the cost of the dress after the discount? - Sugars
In what ratio must two sorts of sugar, costing ; 390 and ; 315 per kg, be mixed to produce a mixture worth ; 369 per kg? - Domains of functions
F(x)=x²-7x and g(x)=5-x² The domain of (fg)(x) is. ... The domain of (f/g)(x). .. - Arithmetic 6963
The arithmetic mean of two numbers is 142. One of the numbers is 16, greater than the second. Find out both numbers. The arithmetic mean is a + b / 2 - Two resistors
Two resistors when they give 25 ohms in series and 4 ohms in parallel, what are the values of - Given
Given 2x =0.125, find the value of x - Commission 2
Mr. Gomez sells used cell phones. His commission for every cellphone sold is 20%. If his total sales are Php 33850, how much is his commission? Please, please, please show your solution. - Test scores
Jo's test scores on the first four 100-point exams are as follows: 96,90,76, and 88. If all exams are worth the same percentage, what is the minimum test score necessary on his last exam to earn an A grade in the class (90% or better)? - Tractors
Five tractors will plow the field for 8 hours. In 2 hours, one tractor broke down. How long do the remaining tractors complete the plow? - Rectangle - area, perimeter
The area of a rectangular field is equal to 300 square meters. Its perimeter is equal to 70 meters. Find the length and width of this rectangle. - Budget plan
In the construction of the building, the planned budget exceeded 13%, which was 32,500 euros. How many euros did it cost to build the building? - Bricklayers
Seven bricklayers will build the house in 630 days. How many bricklayers do we need to take after 150 days to complete the building for (additional) 336 days? - Equations - simple
Solve the system of linear equations: x-2y=6 3x+2y=4 - Integer
Find the integer whose distance on the numerical axis from number 1 is two times smaller than the distance from number 6. - Summands 6879
Divide the number 111 into three summands so that each is two larger than the previous one. - Eq with reciprocal
Solve the given equation with a reciprocal member: a-6/a+10=4/8 - Land area 2
A land area was divided among the three heirs in the ratio of 5:2:4. If the largest share was 20 hectares of land, what is the total land area? Please show your solution and what kind of proportion it is. - Reciprocal equation 3
Solve a reciprocal equation: 1/2 + 2/3=1/x
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