Question

Solve the Following Simultaneous Equation.X + 7y = 10; 3x – 2y = 7

Answer 1

Step-by-step explanation:

. x + 7y = 10 ∴ x = 10 – 7y …(i) 3x – 2y = 7 …1(ii) Substituting x = 10 – ly in equation (ii), we get 3 (10 – 7y) – 2y = 7 ∴ 30 – 21y – 2y = 7 ∴ -23y = 7 – 30 ∴ -23y = -23 ∴ y = −23−23−23−23 Substituting y = 1 in equation (i), we get x = 10 – 7 (1) = 10 – 7 = 3 ∴ (x, y) = (3, 1) is the solution of the given simultaneous equations.Read more on Sarthaks.com - https://www.sarthaks.com/841135/solve-the-following-simultaneous-equations-i-3a-5b-26-a-5b-22-ii-x-7y-10-3x-2y-7

Answer 2

Answer:

Rational Number : A rational number is a fractional number which is in the form of a p/q , where q is ≠ 0.

Some examples are 2/5,3/6,7/8 , 2/3, 2/9 and so on.

Here , see the denominator 5,6,8,9 &3 all are >0

=>Rational number can be further converted into decimal form e.g., 1/2= 0.5

Lear