An epidemic has hit minecole city. its population is declining 34% every hour. in just 3 hours, there are only 25,143 people left in the city. what was the initial population in the city before the epidemic broke out?

The initial population in the city before the epidemic broke out was 87455.

Step-by-step explanation:

The decay formula is:   , where Initial amount, Final amount, rate of decay in decimal form and time duration.

Here,

Plugging these values into the above formula.....

So, the initial population in the city before the epidemic broke out was 87455.

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

its an acute right triangle

step-by-step explanation: