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100-10 m
Dante's goal this year is to read 100 books. The expression above models the number of books Dante has left to read
m months after the beginning of the year. Based on the expression, how many books does Dante have left to read after 4 months?

$100-10 m$ $\newline$ Dante's goal this year is to read $100$ books. The expression above models the number of books Dante has left to read $m$ months after the beginning of the year. Based on the expression, how many books does Dante have left to read after $4$ months?

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Write linear functions: word problems

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Q.

100-10 m

\newline

Dante's goal this year is to read

100

books. The expression above models the number of books Dante has left to read

m

months after the beginning of the year. Based on the expression, how many books does Dante have left to read after

4

months?

Understand Expression: Understand the expression and what it represents. $\newline$ The expression ＂ $100 - 10m$ ＂ represents the number of books Dante has left to read after $m$ months. Here, ＂ $100$ ＂ is the initial number of books Dante wants to read, and ＂ $10m$ ＂ is the number of books he reads after $m$ months.
Substitute Given Value: Substitute the given value of $m$ into the expression. $\newline$ Since we want to find out how many books are left after $4$ months, we substitute $m$ with $4$ in the expression. So we calculate $100 - 10 \times 4$ .
Perform Calculation: Perform the calculation. $\newline$ $100 - 10 \times 4 = 100 - 40 = 60$ $\newline$ Therefore, Dante have left to read $60$ books after $4$ months.

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