Eight white balls and twenty black balls are in a bag. What is the probability of drawing a black ball in one draw?
2/5
5/7
1

5/7

Step-by-step explanation:

Probability of drawing a black ball is;

The total number of black ball/ total number of balls

20/[20+8]= 20/28= 5/7

yes

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step-by-step explanation:

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1