Claim: The difference between two rational numbers always is a rational number
Proof: You have a/b - c/d with a,b,c,d being integers and b,d not equal to 0.
Then:
a/b - c/d ----> ad/bd - bc/bd -----> (ad - bc)/bd
Since ad, bc, and bd are integers since integers are closed under the operation of multiplication and ad-bc is an integer since integers are closed under the operation of subtraction, then (ad-bc)/bd is a rational number since it is in the form of 1 integer divided by another and the denominator is not eqaul to 0 since b and d were not equal to 0. Thus a/b - c/d is a rational number.
Answer:
value preferred stock for $65,250 cash
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HOPE THIS HELP PLEASE TOUCH THANKS.</h2>
He sold each for $25. You’d add 9+27=36 and then divide 36 by 900 (36\900) and you get 25.
Answer:
12/12
Step-by-step explanation:
6/12= 1/2
so 1/2+1/2 = One Whole and that the same thing as 12/12
4x + 1 = -5x -8
4x +5x = -9
9x = -9
x = -1
y=-4+1 = -3
x=-1 y=-3
