What is the expression for "the difference between five times a number and twice that number"?
2N - 5N
5(2 - N)
5N - 2N
generally, the difference between a and b is b-a, as in
the difference between 6 and 10 is 4 (10-6)
so, ...
The expression for "the difference between five times a number and twice that number" can be written as 5N - 2N, where N represents the unknown number. To arrive at this expression, we follow these steps:
1. Start by considering the phrase "five times a number", which translates to 5N. Here, N represents the unknown number.
2. Next, think about the phrase "twice that number". "Twice a number" is equivalent to multiplying the number by 2, so "twice that number" is 2N.
3. Finally, to express "the difference between five times a number and twice that number," we subtract 2N from 5N. This gives us 5N - 2N as the expression.
Therefore, the correct expression for "the difference between five times a number and twice that number" is 5N - 2N.