Says to write a variable expression.
An auto repair bill is $220 for parts and $45 for each hour of labor. If h is the number of hours of labor, express the amount of the repair bill in terms of the number of hours of labor.
Please help I really don't understand this.
220+45h
Note that when h=0, there is just the flat fee. Then add 45 each time h increases by 1.
To write a variable expression representing the amount of the repair bill in terms of the number of hours of labor, you need to break down the repair bill into its different components:
1. The cost of parts is a fixed amount of $220.
2. The cost of labor is $45 for each hour.
Since h represents the number of hours of labor, you can multiply the number of labor hours (h) by the cost per hour ($45) to get the total cost of labor.
Therefore, the variable expression for the repair bill can be written as follows:
220 + 45h
This expression represents the fixed cost of parts ($220) plus the variable cost of labor ($45 multiplied by the number of hours h).