Solve for the first variable in one of the equations, then substitute the result into the other equation.
Point Form:
x= 1, y= -4
Chess board? , the board if there is like a line with points that has points on the same line
Answer:
Step-by-step explanation:
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Elaborate what do the symbols stand for pmme if you need more help.
5 billion * ( 1 + 0.013 ) ^x = 10 billion
1.013 ^x = 10 : 5 = 2

x = 54
1986 + 54 = 2040
In the year 2040 the world`s population will be 10 billion.