X+y=100 4.50+20y=822.00 solve for x and y

Answer for Question X+y=100 4.50+20y=822.00 solve for x and y. is given below:

Q.) X+y=100 4.50+20y=822.00 solve for x and y

Correct Answer is

Without a scientific calculator! x+y = 100 |*(-20) => -20x -20y = -2000                               4.50x+20y=822.00  (+) => => -15.50x = – 1178.00 => x = 1178.00/15.50 =  76 => y = 100 -76 => y = 24.

Conclusion:

This correct answer to this statement is Without a scientific calculator! x+y = 100 |*(-20) => -20x -20y = -2000                               4.50x+20y=822.00  (+) => => -15.50x = – 1178.00 => x = 1178.00/15.50 =  76 => y = 100 -76 => y = 24..