The difference between 3 times a number x and 2 is 19. What is the value of x?
1 answer:
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Answer:
Step-by-step explanation:
Assuming that arc AB is where the inscribed angle meets the outside of the circle, then the rule is that the inscribed angle is 1/2 of the measure of its intercepted arc. For us,
Solving for x:
2(5x - 7) = 2x so
10x - 14 = 2x and
8x = 14 so
x = 1.75
This is a 4 step problem.
Find the probability of drawing a green marble the first time
<em>8 green marbles ÷ 17 total marbles </em>
Next, we find the probability of drawing a green marble the second time
<em>7 green marbles ÷ 16 total marbles </em>
Find the probability of drawing a green marble the third time
<em>6 green marbles ÷ 15 total marbles </em>
We<u> take away one</u> from the total marbles and green marbles each time because we are finding the probability that we draw a green marble <u>all three times </u>
Last step:
Multiply all the probabilities
×
×
The final answer is 7/85 or an 8% chance
If you were curious, the decimal version of this answer is <u>0.08235294</u>