Question #7a695

1 Answer
Feb 14, 2018

Answer:

The number #n# is #3.8#.

Explanation:

First, translate the English sentence to math. "Difference" means subtraction and "is" means equals. It will looks like this:

#stackrel(n-1.8) overbrace"The difference between a number n and 1.8"" " stackrel(=) overbrace"is"" " stackrel2 overbrace"2."#

Now solve for #n# in the equation:

#n-1.8=2#

Add #1.8# to both sides of the equation.

#n-1.8+1.8=2+1.8#

#ncolor(red)(cancel(color(black)(-1.8+1.8)))=2+1.8#

#n=2+1.8#

#n=3.8#

The number is #3.8#.