During the production of phone cases, \( 10 \% \) of raw plastic is wasted. If the company needs 5,000 cases, how much plastic should they purchase? 4.556 Unit of plastic 3,4446 units of plastic , 5,556 units of plastic. 2,446 units of plastic

To determine how much plastic the company should purchase, considering a 10% waste during production, follow these steps: 1. **Determine the Effective Usage Rate:** - Since 10% of the plastic is wasted, only 90% (**100% - 10%**) of the purchased plastic is effectively used. 2. **Calculate the Required Purchase:** - Let \( P \) be the total plastic needed. - The effective plastic used is \( 0.90 \times P \). - To produce 5,000 phone cases: \[ 0.90 \times P = 5,000 \quad \Rightarrow \quad P = \frac{5,000}{0.90} \approx 5,555.56 \text{ units} \] 3. **Round Appropriately:** - It's practical to round up to ensure there's enough plastic, resulting in **5,556 units**. **Correct Answer:** 5,556 units of plastic.