5x+y=10,
y=x+4.
Answer:
Step-by-step explanation:
5x + x + 4 = 10
6x + 4 = 10
6x = 6
x = 1
y = 1 + 4
y = 5
(1, 5)
Answer:
x = 10
Step-by-step explanation:
given
4x - 10 = 3x ( subtract 3x from both sides )
4x - 3x - 10 = 3x - 3x ( simplify both sides )
x - 10 = 0 ( add 10 to both sides )
x - 10 + 10 = 0 + 10 , that is
x = 10
5x -3 < -3
b. Approximately what will the bird population be after twenty years? Round your answer to the nearest thousand.
Answer: a) The required equation is,
b) The approximately population of the birds after 20 years is 16314.
Step-by-step explanation:
a) Since, the initial population, P = 30,000
The rate of increasing, r = 3% per year,
Hence, the population of birds after T years,
Which is the required equation.
b) Now, for T = 20 years,
The population of birds,
⇒ The approximately population of the birds after 20 years is 54183.