PLEASE HELP, WILL GIVE EXTRA PTS!!!! State the domain, range, x-intercept, and y-intercept of each word problem. Also decide if the domain should only include whole numbers. (I only need the domain and range)

An amusement park charges $8.25 for an adult meal and $6.50 for a child meal at its food stand. At the end of the day the food stand had collected $2,145. This situation can be modeled by the equation 8.25x + 6.5y = 2145 where x represents the number of adult meals sold and y represents the number of child meals sold.

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mitnyowls8 mitnyowls8

01-01-2018
Mathematics

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PLEASE HELP, WILL GIVE EXTRA PTS!!!! State the domain, range, x-intercept, and y-intercept of each word problem. Also decide if the domain should only include whole numbers. (I only need the domain and range)

An amusement park charges $8.25 for an adult meal and $6.50 for a child meal at its food stand. At the end of the day the food stand had collected $2,145. This situation can be modeled by the equation 8.25x + 6.5y = 2145 where x represents the number of adult meals sold and y represents the number of child meals sold.

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AriZenZen AriZenZen · Answer 1 · 2018-01-01T02:03:52+01:00

To find the domain you need to find the maximum and minimum possible x values. X represents the amount of adult meals, so the minimum must be zero. After all, you can have a negative amount of meals! The maximum would occur when all the meals were adult meals. The total sum was $2145. So the max can be calculated by 2145/8.25, or a max of 260 adults.

Same thing for range and the y values.
2145/6.50 = 330 max child meals.

*should be whole numbers - not many places sell half meals.