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CBSE Class 9 Answered

write as an equation in two variable : 2x=-3
Asked by sknikita97 | 24 Feb, 2024, 20:30: PM
answered-by-expert Expert Answer

Equation in one variable :-  2x = -3

Equation in two variable :-  2x + 0 y = -3

Answered by Thiyagarajan K | 24 Feb, 2024, 21:46: PM

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CBSE 9 - Maths
Zoremi went to the market to purchase pencils and pens.The cost of 1 pencil is
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Asked by ruthy385 | 10 Jun, 2024, 20:49: PM
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CBSE 9 - Maths
If x ^ 2 + 1/(t ^ 2) = 27 find the values of each of the following: x²-1/x²
Asked by Kangnamalhotra916 | 23 May, 2024, 15:41: PM
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CBSE 9 - Maths
laxman saves 10% More than his expenditure and bhuwan spends 10% more than his savings if laxman savings is 10% more than bhuwan expenditure what is the ratio of incomes of laxman and bhuwa
Asked by rathorgaurav2945 | 21 Apr, 2024, 22:31: PM
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CBSE 9 - Maths
write as an equation in two variable : 2x=-3
Asked by sknikita97 | 24 Feb, 2024, 20:30: PM
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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
Asked by titub5397 | 17 Dec, 2023, 11:39: 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
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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  
Asked by snehameenu656 | 31 May, 2022, 23:12: PM
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CBSE 9 - Maths
if this is a ball that cost 20 ruppe and a bat that cost 100 ruppe but the bat cost 10 ruppe more what is the total cost of ball and bat ?
Asked by nisalya.thakkar | 13 May, 2022, 21:01: PM
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CBSE 9 - Maths
The car is moving with a speed of 60 km/h, travels y km distance in x hours. Represent this statement as a linear equation of two variables and draw the graph. Read from the graph, distance travelled when time is (i) 5 hours, (ii) 10 hours.
Asked by suhasinikhuba | 21 Jun, 2021, 20:00: PM
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