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Purchasing power. 10: 06 Abdullah Masoud Abdullah Ali Manaa Mohamed.

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purchasing power

Purchasing power


Abdullah Masoud

Abdullah Ali

Manaa Mohamed


1, you should research retial prices for your chosen product (this can be done by using the internet for searching or you might actually walk into markets) and product a list that ranges from lowest to highest available.


2, now you are asked to write a compound inequality that represent the price P range, where A and B represent the lowest and highest price respectively.

3 graph the set solution using number line is it a closed or open interval explain your answer
3, Graph the set solution using number line. Is it a closed or open interval ? Explain your answer.

open interval because it can go any ware


4, if you get a salary (write your salary) dirham that goes into your bank account at the end of each month, you want to have a (lowest price) or B the (highest price) in your account by the beginning of the summer for your chosen purchase. If you withdraw N dirhams each month for food, clothes and movie tickets. Write an equation that represents your situation.

3n/3 = 500/3

N = 166.6 Each for food , clothes and movie tickets


5, How many months will you need in order to have enough money in your account for your purchase using both the least and the most expensive amount ?

  • The least is (hard disk) , the highest is (I pad 2 ) if we convent $49.99 and 631.00 into Dhm it will be 183.27 and 2313.34 = 2496.61/500 = 5monthes

7, at some point on your saving journey you decided to take personal loan from your bank. The amount you borrow will depend on how far you have come in saving. For example, if you purchasing costs 1250 AED and you have managed to save 300 AED in your first month, then you will revised eqorporate the loan amount (Y) and write a revised equation for the actual amount you will borrow.

  • The highest is 1950
use the link below to graph the linear equation you wrote for the loan amount expain your solution
Use the link below to graph the linear equation you wrote for the loan amount. Expain your solution.

8, consider a relation defined from boys in your class to their parents defined by ‘is don of’

  • a, write the number of element in the domain.
  • b, what can be the maximum number of element in range ?
  • c, using Microsoft word or other software, construct a mapping diagram, mapping the elements of the domain (student names) to the elements of the range (father names).
  • d, is this relation a function ? Give reasons.