Question

Salvador reads 20 books from the library each month for x months in a row. Write an expression to show how many books Salvador read in all.

A) 20x
B) 20 + x
C) 20 / x
D) x - 20

If Salvador read for 6 months, how many books did he read?

A) 6
B) 120
C) 26
D) 140

Answer 1

To find the total number of books Salvador reads in x months, the expression is 20x. If x is 6 months, then Salvador reads 120 books.

Step-by-step explanation:

The question asks us to create an expression that shows the total number of books Salvador reads if he reads 20 books a month for x months. The correct expression to represent the total number of books read is 20x. This is because if Salvador reads 20 books each month, and he does this for x months, you would multiply the number of books per month by the number of months to get the total number of books.

Using this expression, if Salvador read for 6 months, the number of books he read is calculated by substituting x with 6 in the expression 20x, which gives us 20 * 6 = 120 books.