Question

carson middle school is updating its science curriculum. the school will be buying some new workbooks for $4.50 apiece. the school has also picked out $278 worth of lab supplies. write an equation that shows how the total cost of the new materials, y, depends on the number of workbooks bought, x. do not include dollar signs in the equation. y =

Explanation:

Step1: Define variable costs

The cost of $x$ workbooks is $4.50x$.

Step2: Add fixed lab supply cost

Total cost $y$ equals workbook cost plus fixed cost.
<Expression>
$y = 4.50x + 278$
</Expression>

Answer:

$y = 4.50x + 278$