Answer:
We have the equation
First, we want the same denominator in both equations, so we can multiply in the left by 5, and in the right bt -ab, and now we have:
Now we have all in the same rational.
The only restriction in this type of equation is that the denominator never can be zero.
so 15*a*b = 0 is a restriction:
This means that a can not be zero, and b can not be zero.
Answer:
lol me and thanks :p
Step-by-step explanation:
Answer:
$82.5
Step-by-step explanation:
$82.5
Step-by-step explanation:
We can calculate it with a direct rule of 3. As it has a 30% off, the remaining price is the 70% and we want to know how much is the 100%
We use the formula of the direct rule of 3
x = 82.5
The original price of the stereo was $82.5
Answer:
Step-by-step explanation:
Since area of a circle is pi.r^2
We know that diameter is 20
Radius is half of diameter
So it becomes
Pi.(d/2)^2
So pi.(40/4) is the area of this circle.
Or 40pi/4
Step-by-step explanation:
coefficient of x is 17
coefficient of y is -5
coefficient of constant term: 3 + 19 + 10 = 32
