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ratelena [41]
2 years ago
7

Paul is two years younger than Patricia. Daniel is 25% older than Patricia. Ten years ago, Daniel was 50% older than Patricia. H

ow old is Paul currently?
Mathematics
1 answer:
Step2247 [10]2 years ago
6 0
In this question, you can get 3 formula which was
1. Paul = Patricia - 2
2. Daniel = Patricia * 1.25
3. Daniel - 10 = (Patricia-10) * 1.5
    Daniel - 10 = 1.5 Patricia - 15
    Daniel= 1.5 Patricia -5

If you insert the 2nd equation into the 3rd, then you will get
1.25 Patricia = 1.5 Patricia -5
0.25 Patricia = 5
Patricia = 20

Then insert the result into 1st equation
Paul = Patricia - 2= 20-2= 18 years
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Complete question :

The table shows data collected on the relationship between time spent playing video games and time spent with family. The line of best fit for the data is ý = -0.36x + 94.5.

Video Games (Minutes) Time with Family (Minutes)

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B) Is it reasonable to use this line of best fit to make the above prediction?

Answer:

81. 54

4) The estimate, a predicted time of 81.54 minutes, is both reliable and reasonable.

Step-by-step explanation:

Given that :

The equation of best fit is defined as :

ý = -0.36x + 94.5.

A.) Predicted number of minutes spent with family (y) for someone who spends 36 minutes playing games (x) will be :

x = 36

From the model :

ý = -0.36(36) + 94.5

y = - 12.96 + 94.5

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Answer:

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