Question

modeling real life a city dumps plastic shade balls into a reservoir to prevent water from evaporating during a drought. it costs $5760 for 16,000 shade balls. how much does it cost for 12,000 shade balls?

Explanation:

Step1: Find cost per ball

$\text{Cost per ball} = \frac{\$5760}{16000} = \$0.36$

Step2: Calculate cost for 12,000 balls

$\text{Total cost} = 12000 \times \$0.36$

Answer:

$\$4320$