Answer:
10
Step-by-step explanation:
divide 1800 by 20 and 1800 by 18 and find the difference
Answer:
Every number is being multipled by 3. 12 times 3 = 36. 36 times 3 = 108. 108 times 3 = 324
Step-by-step explanation:
1.5.........................
P( at least 8 correct ) =
<span>........P( 8 ) + P( 9 ) + P( 10 ) = </span>
<span>........(10 C 8).5^10 + (10 C 9).5^10 + (10 C 10).5^10 = ........56*.5^10 = 0.0546875 </span>
<span>Note: Let C denote correct and I denote incorrect. Suppose that guessing results in 8 correct and 2 incorrect answers. One possible outcome is CCCCCCCCII, for example. We can think of the number of ways of getting exactly 8 correct to be the same as the number of ways of selecting 8 spots for the correct answers times the number of ways of selecting two spots for the remaining two answers. There are (10 C 8) ways to select the positions for the correct answers and precisely one way to select the remaining two positions for the incorrect answers. Therefore, there are there are 10 C 8 = 45 ways to get 8 correct. Similarly, there are 10 C 9 = 10 ways to get 9 correct, and 10 C 10 = 1 way to get all 10 correct.</span>
Answer:
5/8 - 5/12 = (5×3/8×3)-(5×2/12×2)15-10/24 = 5/24
Step-by-step explanation:
first find out the LCM ( Lowest Common Multiple ) of the denominators ( here:24 ) and multiply the denominator and numerator , both with the required no. to make the denominator as equal as the LCM [( 5×3/8×3 ) - ( 5×2/12×2)] and subtract / add the numerators. the answer you get is the correct answer.
hope that is helpful for your future.
best of luck
