Evaluate the expression 2.14x – 42.9 for x = 22.4.

1 answer

To evaluate the expression \( 2.14x - 42.9 \) for \( x = 22.4 \), we will substitute \( 22.4 \) for \( x \) in the expression.

First, we calculate:

\[ 2.14 \times 22.4 \]

\[ 2.14 \times 22.4 = 47.936 \]

Next, we subtract \( 42.9 \) from \( 47.936 \):

\[ 47.936 - 42.9 = 5.036 \]

Therefore, the value of the expression \( 2.14x - 42.9 \) when \( x = 22.4 \) is:

\[ \boxed{5.036} \]