I am thinking of two numbers.What will my number be if their sum is 5 and their product is 6?
4 answers
2 and 3 just sort of popped into my mind.
Let x= first unknown
y= second unknown
X+Y = 5 equation 1
(X)*(Y) = 6 equation 2
FROM EQUATION 2
Y= 6/X ( substitute to equation 1)
SO Equation 1
X + (6/X) = 5
X=2
Substitute (X) to ant equation)
Y= 5-2 = 3
SO X= 2 AND Y= 3
y= second unknown
X+Y = 5 equation 1
(X)*(Y) = 6 equation 2
FROM EQUATION 2
Y= 6/X ( substitute to equation 1)
SO Equation 1
X + (6/X) = 5
X=2
Substitute (X) to ant equation)
Y= 5-2 = 3
SO X= 2 AND Y= 3
If you are going to give a detailed solution, then you should not gloss over the critical part of your solution:
SO Equation 1
X + (6/X) = 5
X=2
or else you might just as well state the obvious solution at the beginning.
SO Equation 1
X + (6/X) = 5
X=2
or else you might just as well state the obvious solution at the beginning.
3 and 2