Question

This equation shows how the cost of a plumber's visit is related to its duration in hours.

c = 59d

The variable d represents the duration of the visit in hours, and the variable c represents the cost. If a plumber's visit lasted 1 hour, how much would it cost?

$_

Answer 1

To find the cost of the plumber's visit when the duration \( d \) is 1 hour, you can substitute \( d = 1 \) into the equation \( c = 59d \).

\[
c = 59 \times 1
\]
\[
c = 59
\]

Therefore, the cost of a plumber's visit that lasted 1 hour would be $59.