Answer:
there is not a complete question here ...
is not in a denominator to rationalize
if it were you would multiply the rational expression (the fraction)
by
the result (in the denominator would end up being "2 -1"
which is 1
Step-by-step explanation:
Answer is in the file below
tinyurl.com/wpazsebu
Answer:
The number is 220
Step-by-step explanation:
Let n represent the number
10(2) + n = 240
20 + n = 240
240 - 20 = 220
n = 220