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Question No.1: Solve the following system of two linear equations with two variables x and y...

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Basic Math

Question No.1: Solve the following system of two linearequations with two variables x and y by “Equating the equations”method. ? = ?? ? ?? ??? ? = ?? + 5

Question No.2: Is this matrix ? = [ ? ? ? ? ] singular ornon-singular?

Question No. 3: Solve the following operations with the help of“PEMDAS”. ? ? ? (?? ÷ ?) × ? ÷ ? ? ? × ? + ?? ÷ ?3

Question No.4: A car was purchased for 5400 RO and is sold for4300 RO. What is the percentage loss?

Question No.5 The total revenue function is given as ?? = ?? ? +?? + ? 1. Find the average revenue 2. Find the marginal revenue 3.Find the marginal revenue when x = 3

Question No.6 : Calculate the rate of interest required for aninvestment ????? R.O to earn ???? R.O interest over ? years.

Question No.7: A salesman discounts a watch marked at 125 RO by15%. 1. How much is the discount? 2. How much will a customer payfor the watch?

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