The number of real solutions to the quadratic equ
5a² + 30a + 45 = 0

The answer is 1.

There is one unique real solution, which is x = -3.

Hello, please consider the following.

Thank you

two equal, real solutions

Step-by-step explanation:

The quickest way to determine this is to find the discriminant b^2 - 4ac.  If this determinant (D) is > 0, the quadratic has two different real roots; if + 0, the quadratic has two equal real roots, and if < 0, the quadratic has two imaginary or complex roots.

Here a = 5, b = 30 and c = 45.  The discriminant is

30^2 - 4(5)(45)  =  900 - 900 = 0

and so this quadratic has two equal, real solutions.

you never say the total so we cant find the percentage used for petrol

step-by-step explanation:

20

step-by-step explanation: