Answer:
1/4 for both
Step-by-step explanation:
2/8 -- you divide 2 by 2 you get 1, 8 divided by 2 is 4 -- 1/4
3/12 -- you divide 3 by 3 you get 1, 12 divided by 3 is 4 -- 1/4
** tip: what you do to one half of the fraction you have to do to the other
hope this helps!
It should be for 5 hours if $30 is what they started with
Answer:
![y_Q=\dfrac{21}{5}=4.2](https://tex.z-dn.net/?f=y_Q%3D%5Cdfrac%7B21%7D%7B5%7D%3D4.2)
Step-by-step explanation:
If the point Q that is located two over three the distance from point P to point R, then PQ:QR=2:3.
Use formula to find the coordinates of the point Q:
![x_Q=\dfrac{3x_P+2x_R}{3+2}\\ \\y_Q=\dfrac{3y_P+2y_R}{3+2}](https://tex.z-dn.net/?f=x_Q%3D%5Cdfrac%7B3x_P%2B2x_R%7D%7B3%2B2%7D%5C%5C%20%5C%5Cy_Q%3D%5Cdfrac%7B3y_P%2B2y_R%7D%7B3%2B2%7D)
In your case, P(-2,7) and R(1,0), then
![x_Q=\dfrac{3\cdot (-2)+2\cdot 1}{3+2}=\dfrac{-4}{5}\\ \\y_Q=\dfrac{3\cdot 7+2\cdot 0}{3+2}=\dfrac{21}{5}](https://tex.z-dn.net/?f=x_Q%3D%5Cdfrac%7B3%5Ccdot%20%28-2%29%2B2%5Ccdot%201%7D%7B3%2B2%7D%3D%5Cdfrac%7B-4%7D%7B5%7D%5C%5C%20%5C%5Cy_Q%3D%5Cdfrac%7B3%5Ccdot%207%2B2%5Ccdot%200%7D%7B3%2B2%7D%3D%5Cdfrac%7B21%7D%7B5%7D)
Answer:
C) A person's height, recorded in inches
Step-by-step explanation:
Quantitative Variable:
- A quantitative variable is a variable which can be measured and have a numeric outcome.
- That is the value of variable can be expressed with numbers.
- Foe example: age, length are examples of quantitative variables.
A) The color of an automobile
The color of car is not a quantitative variable as its outcome cannot be measured and expressed in value. It is a categorical variable.
B) A person's zip code
Some variables like zip codes take numerical values. But they are not considered quantitative. They are considered as a categorical variable because average of zip codes have no significance.
C) A person's height, recorded in inches
Height is a qualitative variable because it can be measured and its value is expressed in numbers.
Answer:
In the equation, it divides 21 by x before knowing what x is, and gets it incorrect. Instead, you need to divide 21 by -4.2.
Step-by-step explanation:
-4.2x = 21
-------------
-4.2
x = -5