How do you express the phrase "Five times the number of books is 95" as an algebraic expression?

2 Answers
Mar 13, 2018

Answer:

"Five times the number of books is 95" translates to #5*n = 95#.

Explanation:

In equations, a common variable name for number is n. But anything could be used.

I hope this helps,
Steve

Mar 13, 2018

Answer:

The algebraic expression is #5xxn=95# where #n# is the number of books.

Explanation:

Say that the number of books is #n#. Now "translate" the sentence into math. For example, "times" means multiplication and "is" means equals. It looks like this:

#stackrel(5) overbrace("Five") " " stackrel(xx) overbrace("times") " " stackrel(n) overbrace("the number of books") " " stackrel(=) overbrace("is") " " stackrel(95) overbrace("95") "."#

The final expression is #5xxn=95# or #5n=95#.

Solving for #n# reveals that there are #19# books.