Let

Then

and solving for x gives






By the quadratic formula,

but x must be a positive number, so only the positive square root solution is valid.

We identify a = c = 3 and b = 2, so a + b + c = 8.
Step-by-step explanation:
firstly you will add
the red cars and non red cars together and which is 65
probability of the red car = 25/65
to the lowest form is the 5/13(D)
Answer:
C) (1,3)(2,4)(3,5)(4,6)(5,7)(6,8)
Step-by-step explanation:
Hope it helps you:)
Answer:
to change a repeating decimal to fraction just write the number in the numerator part and as many 9 as the number in the denominator.
Step-by-step explanation:
Hope it helps.
Answer:
x = 2
Step-by-step explanation:
To find the x-value that makes the equation true, we would have to solve for x in the equation. To do that, we would have to get the equation in the form x = _. That would be our answer.
4x - 3 = -9 + 7x
Add 9 to both sides to get rid of the -9 on the right side.
4x - 3 + 9 = 7x
Simplify.
4x + 6 = 7x
Subtract 4x from both sides to get rid of the 4x on the left side.
6 = 7x - 4x
Simplify.
6 = 3x
3x = 6
Divide both sides by 3 to get rid of the coefficient of 3 on the left side.
x = 6/3
Simplify.
x = 2
So, the x-value that makes the equation true would be 2.
I hope this helps. :)