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Phoenix [80]
3 years ago
12

Not long after he begins to study algebra he will likely meet with the "tank" problems, the "labor" problems and many other puzz

le problems. He finds these problems carefully phrased in the language of practical mathematics. However, a study of the original problems and the fanciful way in which they were stated will reveal the fact that they were originally intended mostly for puzzles. The present-day student of algebra would doubtless work as industriously over the so-called practical problems if he were told they were puzzle problems that his predecessors had worked on for the past 1600 years.
The problems given below are selected from a collection made by Metrodorus about 310 A. D. found in The Greek Anthology. It is not known how much farther back they date. It will not be difficult for the reader to trace many of the problems found in the present-day algebras back to their original source. He may judge for himself as to whether the modern text-book writer has improved the problems by leaving off the little fanciful touches of rhetoric, found in the original.

The original problems were solved by rhetorical algebra as our symbols, +, -, ×, ÷, etc., were introduced many centuries later, about 1540.
Mathematics
1 answer:
german3 years ago
6 0

Answer:

wow thats some good information there!

Step-by-step explanation:

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Subtract (2x3 + 9x − 8) − (4x2 − 15x + 7).
STatiana [176]
2x^3 + 9x - 8 - (4x^2 - 15x + 7)....distribute thru the parenthesis
2x^3 + 9x - 8 - 4x^2 + 15x - 7....combine like terms
2x^3 - 4x^2 + 24x - 15 <==
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3 years ago
Read 2 more answers
Solve the quadratic equation by completing the square. x^2-10x+26=8
lilavasa [31]

Answer:

can you please re- write your equation

4 0
3 years ago
How do you find the quotient of 45/9
pishuonlain [190]

The quotient of the given fraction 45/9 is 5.

<h3>What is division?</h3>
  • The division is one of the four basic operations of arithmetic, which are the methods by which numbers are combined to form new numbers.
  • Addition, subtraction, and multiplication are the other operations.
  • At the most basic level, the division of two natural numbers is the process of calculating the number of times one number is contained within another.

Quotient:

  • A quotient is a quantity produced by the division of two numbers in arithmetic.
  • The quotient is widely used in mathematics and is also known as the integer part of a division, a fraction, or a ratio.

So, the quotient of 45/9 is 5 as:
45 ÷ 9 = 5

(Refer to the picture given below for working)

Therefore, the quotient of the given fraction is 5.

Know more about division here:

brainly.com/question/25289437

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4 0
1 year ago
Anil wants to multiply 5, 6, and 3. Which expression could Anil write in the box to
matrenka [14]

Answer:

5x18

Step-by-step explanation:

5x6x3 and 5x18 equal 90

6 0
3 years ago
Read 2 more answers
Question 1 of 4
matrenka [14]

Answer:

1) What is the average score of the student surveyed?

b. 52.5

2) What is the median of the student's surveyed?

52.5

3) How many students were surveyed?

20 students

Step-by-step explanation:

1) What is the average score of the student surveyed?

Average score of the student's been surveyed means we should calculate the mean of the above scores

The formula for Mean = Sum of the number of terms/ Number of terms

Number of terms = 20

Average(Mean score) =

25 + 30 + 35 + 40 + 40 + 45 + 45 + 50 + 50 + 50 + 55 + 55 + 55 + 60 + 60 + 65 + 65 + 70 + 75 + 80/20

= 1050/20

= 52.5

2) What is the median of the student's surveyed?

25, 30, 35, 40, 40, 45, 45, 50, 50, 50, 55, 55, 55, 60, 60, 65, 65, 70, 75, 80

From the above data, we can see that 20 students were surveyed. To find the Median, we find the sum of the 10th value and the 11th value and we divide by 2

Hence,

25, 30, 35, 40, 40, 45, 45, 50, 50,) 50, 55, (55, 55, 60, 60, 65, 65, 70, 75, 80

10th value = 50

11th value = 55

Median = 50 + 55/2

= 105/2

= 52.5

3) How many students were surveyed?

Counting the results of the survey, the number of students that were surveyed = 20 students

3 0
3 years ago
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