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A football stadium holds 17,700 seats. The lower level has 300 seats less than 4 times the number of seats in the upper level. The middle level has 500 more seats than twice the number of seats in the upper level. Let x represent the seats in the upper level. Which equation can be used to find the number of seats in the upper level?

A football stadium holds 17700 seats The lower level has 300 seats less than 4 times the number of seats in the upper level The middle level has 500 more seats class=

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7x+200=17,700 because if you set up an equation for each level, the upper level is just x, the middle level is 2x=500, and the lover level is 4x- 300. if you add all 3 equations together and set it equal to 17,700, it equals 7x+200=17,700

Answer:

Number of seats in upper level=2500

Step-by-step explanation:

A football stadium holds 17,700 seats.

Let x represent the seats in the upper level.

The lower level has 300 seats less than 4 times the number of seats in the upper level.

That means seats in lower level=4x-300

The middle level has 500 more seats than twice the number of seats in the upper level.

Seats in middle level= 2x+500

Hence, total number of seats= x+4x-300+2x+500

                                                = 7x+200

  7x+200=17700

    7x=17500

     x=2500

Hence, number of seats in upper level=2500

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