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seropon [69]
3 years ago
8

Use the information about budgets on page 352 to explain how inequalities are used in finances. Include an explanation of the re

strictions placed on the domain and range of the inequality that describes the number of times Hannah can buy lunch. Describe three possible solutions of the inequality. ( Info ) Hannah budgets $30 a month for lunch. On most days, she brings her lunch. She can also buy lunch at the cafeteria or at a fast-food restaurant. She spends an average of $3 for lunch at the cafeteria and an average of $4 for lunch at a restaurant. How many times a month can Hannah buy her lunch and remain within her budget? The cost of eating in the cafeteria plus the cost of eating in a restaurant is less than or equal to$30. Let x = the number of days she buys lunch at the cafeteria.Let y = the number of days she buys lunch at a restaurant 3x +4y ≤30 There are many solutions for this inequality. Each solution represents a different combination of lunches bought in the cafeteria and in a restaurant.
Mathematics
1 answer:
mrs_skeptik [129]3 years ago
7 0
*it by 15 and you will get the answer
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Question 10 of 21
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<u>ANSWER</u>

A. (4,12)

<u>EXPLANATION</u>

The equations are:

10x +2y = 64...(1)

and

3x - 4y = -36...(2)

To eliminate a variable we make the coefficients of that variable the same in both equations.

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