There are various ways to set up an inequality for the problem. I will help you solve it, though.
So, first we'll take the total amount needed for charity which is $60,000. Subtract the amount in donations, $15,000.
60,000-15,000= 45,000
That means, they "only" need $45,000 more for their $60,000 goal.
We'll determine how much money they'll take in per person. Since they have to also pay for each racer of $13; we'll subtract that amount of the entry fee of $58.
58-13= 45.
Now, we know that they will make $45 per person via entry fee in profit.
We'll take our total of $45,000 and divide it by $45. This will leave you with 1,000.
1,000 race entries are required for this charity to raise $60,000.
