Answer:
$40
Step-by-step explanation:
We can calculate the total purchase cost by setting up this equation:
Total purchase cost = Cost of sunscreen / Percentage of sunscreen in total purchase
If the sunscreen represents 30% of the total purchase, then 100% - 30% = 70% of the total purchase is left for the goggles.
Let's denote the total purchase cost as "T". We know that the sunscreen costs $12.00, which represents 30% of the total, so we can set up the equation:
[tex]$12.00 = 0.30t[/tex]
Now, to find the total purchase cost "T", we can divide both sides by 0.30:
[tex]T = 12.00/0.30t=40.00[/tex]
Therefore, the total purchase cost is $40.00.
