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CBSE Class 9 Answered

[a]give the geometric representation of y+2=0 in two variables. [b]write the equation of the x- axis in two variable [c] give the equations of two lines passing through the point [1,2] [d] exprees variable x in terms of y in the equation 2x+3y=-5
Asked by | 16 Oct, 2012, 06:56: PM
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Answered by | 16 Oct, 2012, 11:17: PM

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CBSE 9 - Maths
Draw the graph of the equation of line 2x + 3y = 6. Write the co ordinates of the point where the line intersects X-axis and Y-axis.
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CBSE 9 - Maths
a man invested one part of his savings at an annual interest at the rate of 12 percent and the other parts at 14 percent if he received a total interest of Rs 4000 represent the given information in the form of a linear equation in two variables
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CBSE 9 - Maths
Ramu’s age is 3 8 th of his father’s age. If his father’s age is 32 years, then Ramu’s age is ___
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CBSE 9 - Maths
you decided to rent a car for your vocation the rental company charges 50 rupees rent the car plus 40 rupees per a day write an equation represent the situation
Asked by venkateshachari | 02 Oct, 2023, 11:42: AM
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CBSE 9 - Maths
Which of the following equations are linear equations in two variables and which are not? i) 2x+5=0 ii) 5x+6y=3z iii) 5x2-3y²+4=0 iv) 4y = 7
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CBSE 9 - Maths
A lending library has a fixed charge for the first three days and an additional charge for each day there after. Neeru paid Rs. 21 for a book kept for five days . Write a linear equation which satisfies this data. Draw trhe graph for the same.
Asked by manmeetsaini1516 | 30 Jun, 2022, 09:36: AM
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CBSE 9 - Maths
Two cell phone companies offer different packages. Company A charges a fixed monthly fees of  Rs 34 plus Rs 0.5/ minute talk time. Company B charges a fixed monthly fees of Rs 40 plus Rs  0.4 / minute talk time. Take x as the charges per minute for the talk time and y as the total amount. Based on above information answer the following question: (i) Linear equations representing the packages of a company A and B are : (a) y=34 + 0.5 x, y= 40 +0.4 x (b) y=34 + 0.4 x, y= 40 +0.5 x (c ) x=34 + 0.5 x, y= 40 +0.4 y (d) x=34 + 0.4y, y= 40 +0.5y (ii) If the average number of minutes used monthly by Sunil is 1160, then which of the  following is true? (a) Company A offers the better package (b)Company B offers the better  package (c ) Both companies offer the same package (d) None of the above (iii) If Sunita pays a total bill of Rs 208 to company B then the number of minutes used  by her : (a) 400  (b) 420 (c) 410 (d)390 (iv) The shape of the graph represented by the equations in part (i) is : (a) Rectangle (b) Circle (c) Parabola (d) Pair of lines (v) The number of minutes of talk time that results in equal monthly bills from both the  companies is : (a) 50  (b) 60  (c) 55  (d)65  
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CBSE 9 - Maths
7. A number consists of two digits whose sum is 12. If 18 is added to the number, the digits are reversed. Find the number.
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