Answer:
x-5
Step-by-step explanation:
1/5(5x-10)-3
5/5x-10/5-3
x-2-3
x-5
Answer:
50 miles per hour!
Step-by-step explanation:
If 2 hours equal 100 miles, then 1 hour will be 50!
Hope this helped!
Answer:
Its already simplified, if you were to simplify it even more it would be 8 5/6
Given:
The quadratic equation is:

To find:
The discriminant of the given equation and the number of real solutions.
Solution:
If a quadratic equation is
, then the value of discriminant is:

If D<0, then the quadratic equation has no real roots or two imaginary roots.
If D=0, then the quadratic equation has two equal real roots.
If D>0, then the quadratic equation has two distinct real roots.
We have,

Here,
. So, the discriminant of the given equation is:



Since D<0, therefore the number of real solutions is 0.
Hence, the value of the discriminant is -31 and the number of real solutions is 0.