I think the formula is: P = P₀. e^(rt)
When P = 2P₀, the formula becomes 2P₀ =P₀.e^(rt)
Simplify by P₀, 2=e^(rt)
ln(2) = lne^(rt)
ln2 = rt.lne or lne =1 then ln2 = rt
Answer:
Step-by-step explanation:
The distance to the lookout is the sum of distances before and after the rest stop:
... "to" distance = 2 mi + 1 3/4 mi = 3 3/4 mi
The distance from the lookout is 1/2 mile shorter, so is ...
... "from" distance = 3 3/4 mi - 2/4 mi = 3 1/4 mi
Then the total hike is ...
... total distance = "to" distance + "from" distance
... = 3 3/4 mi + 3 1/4 mi = 6 4/4 mi
... total distance = 7 mi
The water each hiker will bring is ...
... (7 mi) × (1/4 gal/mi) = 7/4 gal = 1 3/4 gal
The ratio of wilma/teddy is 6/5 , if teddy has X then she has 21+X so you can solve X in this equation 6/5 = (21+x)/x
Answer:
50
Step-by-step explanation:
Remember

and

and

so
I'm going to assume that that x after the 2 exponent is multiply and not a variable to be multiplied, if it is go to option 2

=

=


2. if that x was a variable and nod a multiply then