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Sagot :
The ratio of the donation to the bill in a table from a similar question is constant, which gives;
- The amount donated is proportional to the dinner bill
- If the dinner bill is $50, the amount donated will be $9
How can a professional relationship between the variables be established?
The possible values in the table as obtained from a similar question are as follows;
Dinner Bill ($) Donation ($)
25 4.50
30 5.40
35 6.30
40 7.20
Let B represent the dinner bill, and let D represent the donation.
The amount of donation is proportional to the dinner bill if each corresponding value of D/B is constant.
Checking gives;
4.5/25 = 5.4/30 = 6.3/35 = 7.2/40 = 9/50
Which gives;
D/B = 9/50
- D = 9/50 × B
Therefore
- The amount donated is proportional to the dinner bill
If the dinner bill is $50, we have;
B = 50
Which gives;
D = 9/50 × 50 = 9
- The amount donated will be, D = $9
Learn more about proportional relationships here:
https://brainly.com/question/14518773
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