Use Gauss-Jordan row reduction to solve the given system of equations. (If there is no solution, enter NO SOLUTION. If the system is dependent, express your answer using the parameters x, y, and/or z.) -x + 2y - z = 0 -x - y + 2z = 0 - z = 7 2x (х, у, 2) %3D
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
![The Enormous State University History Department offers three courses
-Ancient, Medieval, and Modern History-and the chairperson is trying to
decide how many sections of each to offer this semester. The department is
allowed to offer 41 sections total, there are 4,700 students who would like to
take a course, and there are 56 professors to teach them. Sections of
Ancient History have 100 students each, sections of Medieval History hold 50
students each, and sections of Modern History have 200 students each.
Modern History sections are taught by a team of two professors, while
Ancient and Medieval History need only one professor per section. How many
sections of each course should the chair schedule in order to offer all the
sections that they are allowed, accommodate all of the students, and give
one teaching assignment to each professor? HINT [See Example 2.] (Assume
each section has the maximum number of students allowed.)
Ancient History
sections
Medieval History
sections
Modern History
sections](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F15c338c4-2352-453a-ae55-d443fa926d38%2F8e26a91e-32fa-4270-833a-e1f397b0e15b%2Ffizhkqi_processed.jpeg&w=3840&q=75)
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