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Alona [7]
3 years ago
8

in a group of 84 kids 3/7 brought their lunches of those who bought their lunches 9 got a slice of pizza. what fraction of the s

tudents who bought their lunches got a slice of pizza?
Mathematics
1 answer:
stiks02 [169]3 years ago
3 0

Answer:

3/16

Step-by-step explanation:

4/7 of 84 = 48 kids

9/48 = 3/16

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A school paid $31.25 for each calculator.
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500/31.25=16

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The school bought 16 calculators

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3 years ago
The data set represents a progression of hourly temperature measurements.Use the regression equation to predict the temperature
zimovet [89]
I will attach google sheet that I used to find regression equation.
We can see that linear fit does work, but the polynomial fit is much better.
We can see that R squared for polynomial fit is higher than R squared for the linear fit. This tells us that polynomials fit approximates our dataset better.
This is the polynomial fit equation:
T(h)=20.2-3.6h-0.875h^2
I used h to denote hours. Our prediction of temperature for the sixth hour would be:
T(6)=20.2-3.6(6)-0.875(6)^2=-32.9
Here is a link to the spreadsheet  (<span>https://docs.google.com/spreadsheets/d/17awPz5U8Kr-ZnAAtastV-bnvoKG5zZyL3rRFC9JqVjM/edit?usp=sharing)</span>

4 0
3 years ago
Read 2 more answers
What is the line through the points (2,3) and (19,17)
hammer [34]

Answer:

y-3=14/17(x-2)

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(17-3)/(19-2)

m=14/17

y-y1=m(x-x1)

y-3=14/17(x-2)

3 0
3 years ago
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