Answer:
In 50 years Population is 96000 people.
Step-by-step explanation:
Let population be x
In the first 10 years
Population becomes 2x
In 20 years it becomes 4x
In 10n years it becomes 2^n x
Therefore
for n= 5
x = 3000
Population is 2⁵ (3000)
= 32(3000)
= 96000
Population becomes 96000
Hope it helps...
1/18 of the students ate pizza at middle ave school.
Answer:
x= 1, y=3
Step-by-step explanation:
y= 2x +1
y= -x +4
Those two equation are in a system that means they need to be true in the same time. Just like I would say look for a car that is red and is a truck in this case we look for x and y is true that y = 2x+1 and is true that y= =x+4.
so y= 2x+1 but y is -x+4 so substitute
-x+4 = 2x +1, add x on both sides
4= 2x+x +1, subtract 1 from both sides
4-1 = 2x +x, combine like terms
3 = 3x , divide both sides by 3
x=1
if x=1 we substitute in y= -1 +4 = 3
