By expressing the total amount spent as a function and placing the value
of $75 as the amount spent, the number of balls to be bought can be found.
- The number of paintballs she needs to buy is <u>713 balls</u>
<h3 /><h3>Reasons for arriving at the above response value:</h3><h3>Given parameters;</h3>
The entrance fee = $18
The price per paintball = $0.08
The promotion = $10 off when the total spent is $75
<h3>
Required parameter:</h3>
The number of paintball that is to be bought along with the entrance fee
to get the promotion.
<h3>
Solution:</h3><h3>Expressing the situation using an equation;</h3>
Let <em>x</em> represent the number of paintballs Carolina needs to buy, we have,
the following linear function;
<h3>Solving for <em>x</em>, the number of Carolina needs to buy;</h3>
Therefore;
x = (75 - 18) ÷ 0.08 = 712.5
The value of <em>x</em> = 712.5 which is seven hundred and twelve and a half paintballs.
Given that half paintballs are not mentioned, an extra whole paintball is purchased to make the total paintballs = 713
The total amount = $18 + 713 × $0.08 = $75.04
<h3>Result;</h3>
Therefore;
- If Carolina buys <u>713 paintballs</u> as well as paying $18 for the entrance fee, she will get the $10 off promotion.
Learn more about linear functions here:
brainly.com/question/6495214
