0.4x + 0.3y =1.7 0.7x -0.2y …

CBSE, JEE, NEET, CUET

Question Bank, Mock Tests, Exam Papers

NCERT Solutions, Sample Papers, Notes, Videos

Install Now

0.4x + 0.3y =1.7 0.7x -0.2y =0.8 Solve the following system of equation

Posted by Sakina Saify 5 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Jigyansh Dara 5 years, 10 months ago

O.4x+0.3y=1.7 4/10x+ 3/10y=17/10 4x+3y/10=17/10 4x+3y=17 -----(1) Similarly 7x-2y=8-----(2) 4x=17-3y X=17-3y/4---(3) Puting (3) in (2) 7 (17-3y/4)-2y =8 119-21y/4 -2y=8 Taking lcm 119-21y-8y=8×4 -29y=36-119 -29y=-83 Y=3 7x-2 (3)=8 7x=8+6 X=14/2 X=2,y=3

1Thank You

ANSWER

Related Questions

t2 -15

Posted by Yash Raj 17 hours ago

CBSE > Class 10 > Mathematics

2 answers

if the product of the zeros of the polynomial ax2-6x-6 is 4

Posted by Bhavan King 3 days, 17 hours ago

CBSE > Class 10 > Mathematics

1 answers

3x^2-14x-18=0 simply by using splitting the middle term

Posted by Udaya Peethala 2 days, 3 hours ago

CBSE > Class 10 > Mathematics

0 answers

Find the digit at unit place number 7*2019×3*2019

Posted by Kangna Gautam 1 day, 3 hours ago

CBSE > Class 10 > Mathematics

0 answers

4x^2-4x-3

Posted by Suman Takri 1 day, 12 hours ago

CBSE > Class 10 > Mathematics

0 answers

Find the 31 th term of an ap whose 11th term is 38 and 16th term is 73

Posted by Geetanjali Mathpal 3 days, 18 hours ago

CBSE > Class 10 > Mathematics

0 answers

If 3825 is equal to 3 x 7 Z find value of x + Y - 2 Z

Posted by Anmol Kaushal 1 day, 7 hours ago

CBSE > Class 10 > Mathematics

0 answers

Ravish runs a book shop at school of math Guru govind he received 480 chemistry books 192 physics books and 672 mathematics books of class 11 he wishes to average these books in minimum numbers of tax such that each tag consists of the book on only one subject and the number of books in each tag is the same sub question number a find the number of box in each tag b find the number of sacks in mathematics books are c find the minimum number of stats of all the books d find the difference in number of tax of mathematics books and some of stackd of physics and chemistry books is

Posted by Maheswari Maya 1 day, 4 hours ago

CBSE > Class 10 > Mathematics

0 answers

Example 12 of ch- probability

Posted by Ritika Jain 20 hours ago

CBSE > Class 10 > Mathematics

0 answers

find the least number that should be added to 2497 so that the sum is exactly divisible by 4,5,6,18

Posted by Jasmine Kaur 2 days ago

CBSE > Class 10 > Mathematics

0 answers

myCBSEguide

CBSE, JEE, NEET, CUET

myCBSEguide

Test Generator

CUET Mock Tests

Download myCBSEguide App

All Courses

Other Websites

CBSE Courses

Resources

Corporate

NCERT Solutions

CBSE Sample Papers