Answer:
More clarification
Step-by-step explanation:
2 of a white ball =2/30 =1/15;
This is the probability of picking a black ball.
Let the number of black ball be X
x/(x +20)= 1/15[ probability of picking black ball ]
15x = x + 20 ; by cross multiplication
14x=20; x = 20/ 14 =1.42 = 1 [ approximately]
But to satisfy the premise given above; we have to approximate the no of balls to 2
Answer:
number of pins to perfect score
120/300=40/100
percent means parts out of 100
40/100=40%
answer is 40% or 0.40
<u>NOTE: To find the percentage we will multiply decimal value of number of know down pins to a perfect score by 100
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Number of know down pins to a perfect score= 0.4 x 100
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<u>
Number of know down pins to a perfect score=40%</u>
If correct please give brainliest
<em>Stay safe and healthy</em>
Thank You<u>
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Answer:
781,200
Step-by-step explanation:
Answer:
The clue to find 'x' is-
- As both, the lines here are intersecting at a point to form VERTICALLY OPPOSITE ANGLES.
According to this theory (2x+20)=60
So, (2x+20)=60
= 2x=60-20
= 2x= 40
= x=40/2
= x=20 degrees
