Answer:
i.) 66% of the earth is covered in water
ii.) 33% is continental
Step-by-step explanation:
You make both sides exponent of
: since we have

we also have

where X and Y can be any expression.
Answer:
20
Step-by-step explanation:
First move the (Y) to the other side of the equal sign,

Then subtract add (15) on both sides

Since a variable can't be negative just divide by (-1) on both sides,

The answer would be,

Hope this helped
:D
Answer:
<h2>x = -2, y = 1</h2>
Step-by-step explanation:
given the system of equations y=1/2x+2 and y=-2x+-3, since the 2 equations are functions of y, we will equate both equations together and calculate the value of x as shown
1/2x+2 = -2x-3
x/2+2x = -3-2
5x/2 = -5
5x = -10
x = -10/5
x = -2
Substituting x = -2 into any of the equation to get the value of y we have;
y = -2(-2)-3
y = 4-3
y = 1
The solution to the system of equation (x, y) = (-2, 1)