Answer:
She needs $55 more dollars
Step-by-step explanation:
Given ,
7/3 = n/21
We need to find the value of n,
Cross multiplying,we get
3n = 21 x 7
=> 3n = 147
=> n = 147/3
=> n = 49 is the required answer
Answer:
47.73% probability that it takes Renee at most 29 minutes to go grocery shopping
Step-by-step explanation:
An uniform probability is a case of probability in which each outcome is equally as likely.
For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.
The probability that we find a value X lower than x is given by the following formula.
![P(X \leq x) = \frac{x - a}{b-a}](https://tex.z-dn.net/?f=P%28X%20%5Cleq%20x%29%20%3D%20%5Cfrac%7Bx%20-%20a%7D%7Bb-a%7D)
Uniformly distributed between 18.5 minutes and 40.5 minutes.
This means that ![a = 18.5, b = 40.5](https://tex.z-dn.net/?f=a%20%3D%2018.5%2C%20b%20%3D%2040.5)
What is the probability that it takes Renee at most 29 minutes to go grocery shopping
![P(X \leq 29) = \frac{29 - 18.5}{40.5 - 18.5} = 0.4773](https://tex.z-dn.net/?f=P%28X%20%5Cleq%2029%29%20%3D%20%5Cfrac%7B29%20-%2018.5%7D%7B40.5%20-%2018.5%7D%20%3D%200.4773)
47.73% probability that it takes Renee at most 29 minutes to go grocery shopping
Answer:
2/4
Step-by-step explanation: