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strojnjashka [21]
3 years ago
13

a circus charges $2.50 for kids tickets and $6 for adult tickets last week and twice as many kids attended the circus than adult

s. if the ticket sales totaled 7,150. how many kids attended the circus
Mathematics
1 answer:
aliina [53]3 years ago
5 0
Let
x-----------> the number of kids
y----------> the number of adults

we know that
2.5x+6y=$7150---------> equation 1
x=2y-------------> equation 2
substitute 2 in 1
2.5*[2y]+6y=7150-----> 5y+6y=7150----> 11y=7150-----> y=650
x=2y----> x=2*650----> 1300

the answer is
the number of kids is 1300
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The correct option is (A) x^6 + x^5 - 2x^4  - 2x^3 + 3x^2 + 6x - 9 

Explanation:
The product of two polynomials:
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Row1:   x^6       x^5      -3x^3
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Row3:  3x^3     3x^2      -9

Add all of the above rows:
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