48+30 is 78, so we need to find the equation that is equal to that.
The first one is not enough, the second one is too much, and the third one is too much as well. The fourth on is the answer.
Answer:
It will take 5 years for the population to reach 1,944. Option D is correct.
Step-by-step explanation:
Initial population = I = 8
Final population = F = 1944
number of years = x
As given, the population is tripled every year that can be calculated using:
F = I*3^x
By putting values in this equation, we get
1944 = 8*3^x
1944/8 = 3^x
243 = 3^x
3^x = 243
3^x = 3^5
x = 5 bases are same so powers can be simplified.
Therefore, it will take 5 years for the population to reach 1,944. Option D is correct.
Answer:
Answer is 11
Step-by-step explanation:
At morning=0-1= -1
Afternoon=-1+15=14
Night = 14 -3=11
Answer:
13/3 =x
Step-by-step explanation:
f(x)=3x+2
Let f(x) = 15
15 =3x+2
Subtract 2 from each side
15-2 =3x+2-2
13 = 3x
Divide each side by 3
13/3 = 3x/3
13/3 =x
An unconnected point because you cannot buy a fractional part of lunch