Answer:
The probability the code is 14z is .
Step-by-step explanation:
Probability is calculated using the following fraction:
In this case, we are looking at three independent, combined events. This means that each pick of a number or letter does not depend on the previous event, but that the probability of each is linked, so we must multiply each probability together to get the total probability of the compete code. Since the numbers are 00 to 49, there are five total outcomes for the first number (0, 1, 2, 3, 4) and ten total outcomes for the second number (0, 1, 2, 3, 4, 5, 6, 7, 8, 9). The total outcomes for the letter selection would be 26, since there are 26 letters in the alphabet. Now, we multiply each probability together:
Let the present age of student be x
Present of teacher will be 4x
After 20 years,
Age of student = x + 20
Age of teacher = 4x + 20
According to the given condition after 20 years,
x + 20 = (4x + 20)/2
x + 20 = 2x + 10
2x - x = 20 - 10
x = 10
So student's present age is 10 years while teacher's is 4 x 10 i.e 40 years.
Hope This Helps You!
We are required to find the average change in weight each month.
The average weight lost each month is 1.4 pounds
<em>Total weight lost</em> = 3.5 pounds
<em>Number of months </em>= 2.5 months
<em>Average weight lost each month = Total weight lost / Number of months</em>
= 3.5 pounds / 2.5 months
= 1.4 pounds per month
Therefore, the average weight lost each month is 1.4 pounds
Read more:
brainly.com/question/3215028
Answer:
3/2
Step-by-step explanation:
1. Plot the points (-2, -5) and (4, 4) on a graph.
2. Count how many units up and how many units over you have to go to get from the first point to the second. You go up 9 and over 6. That means the slope is 9/6.
3. Reduce 9/6 to 3/2.
The answer is letter B, larger!
I hope this helped! Mark me Brainliest! :) -Raven❤️