A because if he started at negative ten you would add the 10 he increased. When you add those two together you get 0.
-10+10=0
Answer:
D. -20
Step-by-step explanation:
Hope this helps!
Answer:
50
Step-by-step explanation:
because 250 g = 20 cookies
500g = 40 cookies
625 = 50 cookies
120 g = 20 cookies
240 g = 40 cookies
360 g = 60 cookies
but you only able to make 50 from butter so the answer is 50
Answer:10
Step-by-step explanation:
X/5+4 = 6
(Subtract 4 on both sides)
X/5 =2
(Multiply 5 on both sides to get x alone)
2(5) = 10
X = 10
This is the concept of exponential growth;
the formula for obtaining the number of bacteria at time t in future is:
f(t)=ae^(kt)
where;
f(t)=population in future
a=initial population
k=constant of proportionality.
suppose the initial population was x, when the population doubles it will be 2x at a future time t.
k=0.027
thus substituting the above in our formula we get:
2x=xe^(0.027t)
solving for t we get:
2=e^(0.027t)
introducing the log function we get:
ln2=0.027t
thus;
t=(ln2)/0.027
=25.67
therefore;
t=25.67 hours
