Earlier quoted context omitted.
Weeks? A startup looking for funding of this amount shouldn't be burning anywhere near that amount (tens of thousands a week!) This should be months, up to a year for 1-2 founder team.
...How? 3 people / 75k = 25k per person. At a reasonable 100k/year earning potential, that means that 75k a year is 3 months of time?
You can't walk away from your day job at $BIGCO, start your own company and expect to get paid like you used to, it doesn't work like that (at least at the beginning).
Your pay is having a large % ownership in (what you think will be) a valuable company down the line.