=9? is that what youre trying to say? if so rephrase the question please and thank-you.
The answer is x equals three
The simplest form of 21:28 is 3:4. you just divide both numbers by the greatest common factor.
Answer:
0.216
Step-by-step explanation:
If the probability of green, P(green) is 40%, the probability of red, P(red) is 60%.
The probability of a light being red is not affected by the colour of the previous light, so at each of the 3 lights, the probability of red is always 60%.
To find the probability that all three lights will be red, multiply the three probabilities together. (Convert them to decimals first).
0.6 x 0.6 x 0.6 = 0.216
