Answer: 6 years old.
Step-by-step explanation:
For this exercise let "x" represents your present age.
According to the information provided in the exercise, you know that In three years, Chad will be three times your present age.
Then, your age in three years can be represented with the following expression:
![x+3](https://tex.z-dn.net/?f=x%2B3)
Knowing at that time Chad's age will be three times yours and you will be half as old as old as Chad, you can write the following equation to represent this situation:
![x+3=\frac{3x}{2}](https://tex.z-dn.net/?f=x%2B3%3D%5Cfrac%7B3x%7D%7B2%7D)
Therefore, the final step is to solve for "x" in order to find its value.
You get that this is:
![2(x+3)=3x\\\\2x+6=3x\\\\6=3x-2x\\\\x=6](https://tex.z-dn.net/?f=2%28x%2B3%29%3D3x%5C%5C%5C%5C2x%2B6%3D3x%5C%5C%5C%5C6%3D3x-2x%5C%5C%5C%5Cx%3D6)
Answer:
Why you white you look so dum animal
Step-by-step explanation:
Answer: 43
To get the answer to this question you have to place the numbers form least to greatest and you can cross off numbers on each end until you reach the middle in this case the middle number is 43 so that’s your median
Answer:
The following are the solution to this question:
Step-by-step explanation:
In the given question, some of the values are missing which is defined in the attached file please find it.
In this question, the data is used to represent a standardized exam's scores, which is normally spread out into the test score that is 1530 and its standard deviation 316.
Formula:
![\to z=\frac{X- \mu}{\sigma } \\](https://tex.z-dn.net/?f=%5Cto%20z%3D%5Cfrac%7BX-%20%5Cmu%7D%7B%5Csigma%20%7D%20%5C%5C)
If the value of z-score= 1930
![\to z =\frac{1930- 1530}{316 } \\\\ \to z =\frac{400}{316 } \\\\ \to z = 1.27](https://tex.z-dn.net/?f=%5Cto%20z%20%3D%5Cfrac%7B1930-%201530%7D%7B316%20%7D%20%5C%5C%5C%5C%20%5Cto%20z%20%20%3D%5Cfrac%7B400%7D%7B316%20%7D%20%5C%5C%5C%5C%20%5Cto%20z%20%3D%201.27)
The z-score is 1.27
If the value of z-score= 1250
![\to z =\frac{1250- 1530}{316 } \\\\ \to z =\frac{-280}{316 } \\\\ \to z = -0.886](https://tex.z-dn.net/?f=%5Cto%20z%20%3D%5Cfrac%7B1250-%201530%7D%7B316%20%7D%20%5C%5C%5C%5C%20%5Cto%20z%20%20%3D%5Cfrac%7B-280%7D%7B316%20%7D%20%5C%5C%5C%5C%20%5Cto%20z%20%3D%20-0.886)
The z-score is -0.886
If the value of z-score= 2250
![\to z =\frac{2250- 1530}{316 } \\\\ \to z =\frac{720}{316 } \\\\ \to z = 2.27](https://tex.z-dn.net/?f=%5Cto%20z%20%3D%5Cfrac%7B2250-%201530%7D%7B316%20%7D%20%5C%5C%5C%5C%20%5Cto%20z%20%20%3D%5Cfrac%7B720%7D%7B316%20%7D%20%5C%5C%5C%5C%20%5Cto%20z%20%3D%202.27)
The z-score is = 2.27
If the value of z-score= 1420
![\to z =\frac{1420- 1530}{316 } \\\\ \to z =\frac{-110}{316 } \\\\ \to z = -0.348](https://tex.z-dn.net/?f=%5Cto%20z%20%3D%5Cfrac%7B1420-%201530%7D%7B316%20%7D%20%5C%5C%5C%5C%20%5Cto%20z%20%20%3D%5Cfrac%7B-110%7D%7B316%20%7D%20%5C%5C%5C%5C%20%5Cto%20z%20%3D%20-0.348)
The z-score is = -0.348