The right answer for the question that is being asked and shown above is that: "C. Begin fraction twenty-seven over forty end fraction." the number that is halfway between Begin fraction three over five end fraction and Rationals, Irrationals, and Radicals, Part 1 is that C.Begin fraction twenty-seven over forty end fraction
Answer: D = r*t + r*t <em>372 3/4 = (63 * 2 3/4) + (57 * 3 1/2)</em>
OR
D1 + D2 = Total 173 1/4 + 199 1/2 = 372 3/4
D1 = r1 *t1 63 * 2 3/4 = 173 1/4
D2 = r2 * t2 57 * 3 1/2 = 199 1/2
Step-by-step explanation:
The trip is in two segments, so calculate the distance driven in each portion, then add the two distances together to get the total.
Another way to write the expression would be D = r*t + r*t
Answer:
MY GuYYYY wHat Is ThIS qUeSTioN?!?!?
Step-by-step explanation: I think the answer is green btw
Answer:
Smaller Amount =$206
Larger Amount =$309
Step-by-step explanation:
Let the total amount of money =x
The money will be divided in the ratio 2:3
Total Number of Shares =2+3=5
Therefore:
Smaller Amount ![=\dfrac25x](https://tex.z-dn.net/?f=%3D%5Cdfrac25x)
Larger Amount![=\dfrac35x](https://tex.z-dn.net/?f=%3D%5Cdfrac35x)
Four times the smaller amount is one hundred three dollars less than three times the larger amount.
Therefore:
![3$ X\dfrac35x=4$ X \dfrac25x + 103\\\dfrac{9x}{5}=\dfrac{8x}{5}+103\\$Collect like terms\\\dfrac{9x}{5}-\dfrac{8x}{5}=103\\\dfrac{x}{5}=103\\$Cross multiply\\x=103*5\\Amount of money to be shared, x=\$515](https://tex.z-dn.net/?f=3%24%20X%5Cdfrac35x%3D4%24%20X%20%5Cdfrac25x%20%2B%20103%5C%5C%5Cdfrac%7B9x%7D%7B5%7D%3D%5Cdfrac%7B8x%7D%7B5%7D%2B103%5C%5C%24Collect%20like%20terms%5C%5C%5Cdfrac%7B9x%7D%7B5%7D-%5Cdfrac%7B8x%7D%7B5%7D%3D103%5C%5C%5Cdfrac%7Bx%7D%7B5%7D%3D103%5C%5C%24Cross%20multiply%5C%5Cx%3D103%2A5%5C%5CAmount%20of%20money%20to%20be%20shared%2C%20x%3D%5C%24515)
Therefore:
Smaller Amount ![=\dfrac25$ X 515 =\$206\\](https://tex.z-dn.net/?f=%3D%5Cdfrac25%24%20X%20515%20%3D%5C%24206%5C%5C)
Larger Amount![=\dfrac35$ X 515 =\$309](https://tex.z-dn.net/?f=%3D%5Cdfrac35%24%20X%20515%20%3D%5C%24309)
The value of correlation coefficient (r) for the dataset is 0.981
<h3>What is correlation coefficient (r)?</h3>
The correlation coefficient (r) is used to determine the closeness and association of a scatter plot points.
The dataset is given as:
- x: 8 15 3 7 2 14
- y: 15 21 6 12 3 20
Using a graphing calculator, we have the following parameters:
<h3>X Values
</h3>
- ∑x = 49
- Mean = 8.167
- ∑(X - Mx)2 = SSx = 146.833
<h3>Y Values
</h3>
- ∑y = 77
- Mean = 12.833
- ∑(Y - My)2 = SSy = 266.833
<h3>X and Y Combined
</h3>
- N = 6
- ∑(X - Mx)(Y - My) = 194.167
The correlation coefficient (r) is then calculated as:
This gives
![r = \frac{194.167 }{ \sqrt{((146.833)(266.833))}}\\](https://tex.z-dn.net/?f=r%20%3D%20%5Cfrac%7B194.167%20%7D%7B%20%5Csqrt%7B%28%28146.833%29%28266.833%29%29%7D%7D%5C%5C)
![r = 0.9809](https://tex.z-dn.net/?f=r%20%3D%200.9809)
Approximate
![r = 0.981](https://tex.z-dn.net/?f=r%20%3D%200.981)
Hence, the value of correlation coefficient (r) for the dataset is 0.981
Read more about correlation coefficient at:
brainly.com/question/4219149