Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 9 Answered

A grocer buys 10 eggs for Rs 8.Set up a linear equation with x representing the number of eggs and y representing the total cost in rupees.By reading the graph,find 1.the cost of 15 eggs 2.the number of eggs for Rs 16
Asked by Raminder Singh | 22 Feb, 2014, 08:13: AM
answered-by-expert Expert Answer
The cost of 10eggs is Rs.8
 
Thus the cost of one eg, C o s t space o f space o n e space e g g equals R e.4 over 5
Let x represents the number of eggs and y represents the total cost of x eggs.
 
Thus the linear equation represents this transaction is y equals 4 over 5 x
Let us observe the following graph:
 
The points P and Q represent the points when the number of eggs are 15 and 16 respectively.
 
Draw perpendiculars, PM and QN to y-axis.
 
Thus, M and N represent the total cost of 15 and 16 eggs respectively.
 
By reading the graph, the cost of 15 eggs is Rs.12
 
And the cost of 16 eggs is Rs.12.8
Answered by | 24 Feb, 2014, 10:56: AM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
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, 10:31: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
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.
question image
Asked by saee.shinde3069 | 31 Mar, 2024, 10:12: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
write as an equation in two variable : 2x=-3
Asked by sknikita97 | 24 Feb, 2024, 08:30: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
write the linear equation 3x+2y=18 in the form of ax+by+c=0,also write the values of a,band c.Are(4,3)and (1,2) solutions of this equation
Asked by rambhau59182 | 15 Jan, 2024, 05:20: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
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
ANSWERED BY EXPERT ANSWERED BY EXPERT
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 ___
Asked by achandrika140 | 27 Oct, 2023, 10:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
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
ANSWERED BY EXPERT ANSWERED BY EXPERT
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
Asked by vikas1399singh | 29 Sep, 2023, 08:40: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
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
ANSWERED BY EXPERT ANSWERED BY EXPERT
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, 11:12: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×