Answer:
Change 4020 to 4000 + 25.
Then use the distributive property.
4025 * 5 = (4000 + 25) * 5 = 4000 * 5 + 25 * 5 = 20,000 + 125 = 20,125
Answer:
-2/4
Step-by-step explanation:
I got two points from the graph and used the slope intercept formula or whatever the name is so yeah
Answer:
x=2
Step-by-step explanation:
11/10=132/20+5x
1320=11(20+5x)
1320=220+55x
1100=55x
110/55=x
x=2
Answer:
a)
b) 334,858 bacteria
c) 4.67 hours
d) 2 hours
Step-by-step explanation:
a) Initial number of bacteria is the coefficient, that is, 250. And the growth rate is the coefficient besides “t”: 0.15. It’s rate of growth because of its positive sign; when it’s negative, it’s taken as rate of decay.
Another way to see that is the following:
Initial number of bacteria is N(0), which implies . And . The process is:
b) After 2 days means . So, we just replace and operate:
c)
d)
A typewriter costing $75.00 marked up 40% on cost M = 40 and S = 105