Answer:
1/64
Step-by-step explanation:
We want a second H in the 9th toss. So, we must get only 1 H in the first eight tosses.
So, in the first 8 tosses, we have 1 H and 7 T. Number of ways of getting 1 H and 7 T is 8!/7! = 8
Total possible outcomes = 2^9 = 512
Required probability = 8/512 = 1/64
[ If there is any problem with the solution, please inform me ]
Answer:
-3/7, 1/4, 1/2
Step-by-step explanation:
The larger the denominator the smaller the fraction.
We need to find the price of the fountain first then after the coupon. Luckily, it originally costs 100. So, it won’t be hard to find 35% off since 1%=1. 100-35=65
We gave 65 and we need to take 12 off of it.
65-12
53
So the final price will be $53.
The answer is B because none of the others work.
Answer:
10 square in.
Step-by-step explanation:
The rectangles are similar by a scale factor of 3. We can tell because the quotient of two of the corresponding sides, 18 and 6, is 3 (18/6=3)
That means the width of ABCD is 3 times the width of WXYZ.
Let's say the width of ABCD is x. Then 18*x=90 because that's the area.
x=90/18=5
Now we have the width of ABCD, 5, so to get the width of WXYZ, we divide by 3, which is 5/3.
Now to get the area of WXYZ, we can do 5/3, the width, times 6, the length, which is 30/3=10.