Ask a Doubt
Request a call back

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

CBSE Class 9 Answered

If two numbers are such that the sum of thrice the first and twice the second by 50 and four times the first exceed five times the second by 13. Find the numbers. Plz explain how we got 2nd equation
Asked by priyalpathak06 | 18 Jul, 2019, 08:13: PM
answered-by-expert Expert Answer
Considering the question as
If two numbers are such that the sum of thrice the first and twice the second is 50 and four times the first exceed five times the second by 13. Find the numbers.
 
Let x and y be the numbers.
The sum of thrice the first and twice the second is 50.
The equation can be written as 3x + 2y = 50
Four times the first exceed five times the second by 13.
The equation can be written as 4x = 5y + 13.
 
3x + 2y = 50....(i)
4x - 5y = 13 ....(ii)
Solving these equations we get x = 12 and y = 7

Answered by Sneha shidid | 19 Jul, 2019, 09:45: 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
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
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
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
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, 09:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
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, 08:00: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
what is linear equations
Asked by guntursowmya57 | 16 Mar, 2021, 07:39: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
Express 2x = 5y in the form ax + by + c = 0Express 2x = 5y in the form ax + by + c = 0Express 2x = 5y in the form ax + by + c = 0
Asked by swatipuspapatel | 08 Feb, 2021, 06:51: 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
×