Answer:
C, D, F
Step-by-step explanation:
She walked 12 miles. Then she walked 1/4 that distance. "That distance" is 12 miles.
That means she walked 12 miles plus 1/4 of 12 miles.
She walked
12 + 1/4 * 12
You can factor out 12 from the expression above, and write it as
12(1 + 1/4)
Now you can do the addition in parentheses.
12(1 + 1/4) = 12(4/4 + 1/4) = 12(5/4)
Answer:
C, D, F
Answer is b !!!!!!!!!!!!!!
30 minutes for each girl. 30min x 4girls = 120min for all girls. 120/60=2 hrs
Answer:
Speed per second= 7.5 feet per second
Step-by-step explanation:
Giving the following information:
We have a distance (225 feet), and a time (30 seconds). Also, we know that the speed was constant.
<u>All we have to do is divide the distance by the time and determine the speed per second:</u>
Speed per second= distance / time
Speed per second= 225 / 30
Speed per second= 7.5 feet per second
Answer: 1/6
Step-by-step explanation:
Probability of getting heads or tail is:
P (H) = P(T) = 1/2
The probability of getting any number on the die is:
P (1) = P (2) = P(3) = P (4) = P (5) = P (6) = 1/6
The probability of getting a tail on the coin and a number less than 3 on the die is:
![P($Tails and a number less than 3$)=P($Tails$) \times P$(A number less than 3)$$\begin{aligned}&=\frac{1}{2} \times[P(1)+P(2)] \\&=\frac{1}{2} \times\left[\frac{1}{6}+\frac{1}{6}\right] \\&=\frac{1}{6}\end{aligned}$$](https://tex.z-dn.net/?f=P%28%24Tails%20and%20a%20number%20less%20than%203%24%29%3DP%28%24Tails%24%29%20%5Ctimes%20P%24%28A%20number%20less%20than%203%29%24%24%5Cbegin%7Baligned%7D%26%3D%5Cfrac%7B1%7D%7B2%7D%20%5Ctimes%5BP%281%29%2BP%282%29%5D%20%5C%5C%26%3D%5Cfrac%7B1%7D%7B2%7D%20%5Ctimes%5Cleft%5B%5Cfrac%7B1%7D%7B6%7D%2B%5Cfrac%7B1%7D%7B6%7D%5Cright%5D%20%5C%5C%26%3D%5Cfrac%7B1%7D%7B6%7D%5Cend%7Baligned%7D%24%24)
Therefore the required of getting tails and a number less than 3 is 1/6
