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trapecia [35]
3 years ago
8

You buy x bottles of soda for $1.50 using a gift card that you got as a reward for getting good grades

Mathematics
1 answer:
nadya68 [22]3 years ago
4 0

Answer:

0\leq x \leq 10

Step-by-step explanation:

The function is  f(x)=15-1.50x  where x is the number of bottles of soda.

The domain means the set of "allowed" x values.

Also, f(x) means the amount of money left, which cannot be less than 0. So we put 0 into f(x) and solve for x:

f(x)=15-1.5x\\0=15-1.5x\\1.5x=15\\x=\frac{15}{1.50}\\x=10

This means the highest number of bottles you can buy is 10. So the domain is anything from 0 to 10. <em>You can buy 0 until highest 10 bottles. Hence the domain is </em>

0\leq x \leq 10

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