Question

variables and algebraic expressions
evaluate ( n - 5 ) for each value of ( n ).

1. ( n = 8 )
2. ( n = 121 )
3. ( n = 32 )
4. ( n = 59 )

evaluate each expression for the given values of the variable.

1. ( 3n + 15 ) for ( n = 4 )
2. ( h div 12 ) for ( h = 60 )
3. ( 32x - 32 ) for ( x = 2 )
4. ( \frac{c}{2} ) for ( c = 24 )
5. ( (n div 2)5 ) for ( n = 14 )
6. ( 8p + 148 ) for ( p = 15 )
7. ( e^2 - 7 ) for ( e = 8 )
8. ( 3d^2 + d ) for ( d = 5 )
9. ( 40 - 4k^3 ) for ( k = 2 )
10. ( 2y - z ) for ( y = 21 ) and ( z = 19 )
11. ( 3h^2 + 8m ) for ( h = 3 ) and ( m = 2 )
12. ( 18 div a + b div 9 ) for ( a = 6 ) and ( b = 45 )
13. ( 10x - 4y ) for ( x = 14 ) and ( y = 5 )

1. you can find the area of a rectangle with the expression ( lw ) where ( l ) represents the length and ( w ) represents the width. what is the area of the rectangle at right in square feet?

(image of a rectangle with height 5 ft and width 2 ft)

1. rita drove an average of 55 mi/h on her trip to the mountains. you can use the expression ( 55h ) to find out how many miles she drove in ( h ) hours. if she drove for 5 hours, how many miles did she drive?

Explanation:

Problem 1: Evaluate \( n - 5 \) for \( n = 8 \)

Step 1: Substitute \( n = 8 \) into the expression

\( 8 - 5 \)

Step 2: Perform the subtraction

\( 8 - 5 = 3 \)

Step 1: Substitute \( n = 121 \) into the expression

\( 121 - 5 \)

Step 2: Perform the subtraction

\( 121 - 5 = 116 \)

Step 1: Substitute \( n = 32 \) into the expression

\( 32 - 5 \)

Step 2: Perform the subtraction

\( 32 - 5 = 27 \)

Answer:

3

Problem 2: Evaluate \( n - 5 \) for \( n = 121 \)