$90 because you take the discounted price then divide it by .40 (40%)
Answer:
3125 bacteria
Step-by-step explanation:
Let r(0) be the initial amount of bacteria. Every hour, r(n) decreases by half. So, after one our new value for r(n) = (1/2)r(0). After two hours, r(n') = (1/2)r(n) = (1/2)(1/2)r(0) = (1/2)²r(0).
After n hours, r(n) = (1/2)ⁿr(0)
So when n = 4 hours and r(0) = 50,000, then
r(4) = (1/2)⁴r(0)
r(4) = (1/2)⁴ × 50,000
r(4) = (1/16) × 50,000
r(4) = 3125
So, after 4 hours, we have 3125 bacteria present.
Answer:13
Step-by-step explanation:
Hanks Graph: Straight line that does NOT go through the origin
Because he pays the same amount every month but he started with a cost of 2,000. That puts him off the origin
Lynn's graph:
Straight line that DOES pass through the origin
She pays the same every month, but she also started by paying nothing, meaning she does start at the origin.
Third question:
Just Lynn. Lynn pays the same $275 a month, but Hank started with $2,200.
