Answer:
54 and 30
Step-by-step explanation:
84÷2=42-12=30
42+12=54
To buy 3 packs, the cost would be $4.68
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)
Answer:
key is 18
exit tag is 15
lock is 14
key*tag*lock = 3780
Step-by-step explanation:
54/3 is 18 so each key is 18
48-key = 30 so each tag is 15 since 15+15 = 30
18*15*14=3780