Answer:
Yes
IT WILL TAKE 8 YEARS.
Step-by-step explanation:
Bear starting population = 100
Bear population rate = 4 per year
Snake starting population = 1
Snake population rate = doubles every year
Bear population model:
y = 4x+100
Where y = new bear population
x = number of years after year 2000
Snake population model :
y = 2^x
Where y = new snake population
x = number of years after year 2000
THE POPULATION OF SNAKES WILL CATCH UP WITH THAT OF BEARS BECAUSE AFTER 7 YEARS THE POPULATION WILL BE EVEN.
After 7 years :
Bear population :
y = 4x + 100
y = 4(7) + 100 = 128
y = 128
Snake population :
y = 2^x
y = 2^7
y = 128
Using random guess in the both models :
After 8 years :
Bear population :
y = 4x + 100
y = 4(8) + 100 = 132
y = 132
Snake population :
y = 2^x
y = 2^8
y = 256
notice above... we use the decimal format for the percentage, thus 20% is really just 20/100, 40% is 40/100 and so on.
so.. whatever "x" and "y" amounts are, we know they have to add up to 60 Liters, that is x+y = 60
and whatever the concentration amount of each is, it must add up to (60)(0.40), that is 0.20x+0.50y=(60)(0.40)
thus
solve for "x", to see how much of the 20% solution will be needed
what about "y"? well, y = 60 - x
Exterior
For example
You have a triangle with angles 20 30 and 130
The exterior angle of 130 is 50 as 130+50=180
Angles on a straight line =180
20+30=180-130
Answer:
the answer is 39
Step-by-step explanation:
hope that helps
Answer:
x=2
Step-by-step explanation:
6(x-6)+2x=6(2-3x)+4x-2x
6x-36+2x=12-18x+4x-2x
8x-36=-16x+12
24x-36=12
24x=48
x=2
