Use the Quadratic formula,
x= -b +/- sqrt(b^2-4ac)
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2a
x= 4 +/- sqrt(16+12)
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-6
x = 4+/- sqrt(28)
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-6
x = 4 +/- 2*sqrt(7)
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-6
x= 2(2+/- sqrt(7))
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2(-3)
x= 2+/- sqrt(7)
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-3
5:12 add sum to sum then sum
$42 is the answer because 10% of 210 is 21 multiply that by 2
Answer: 60 student tickets were sold
90 adult tickets were sold
Step-by-step explanation:
Let x represent the total number of student tickets sold.
Let y represent the total number of adult tickets sold.
The Glee Club sold a total of 150 tickets to their spring concert. This means that
x + y = 150
x = 150 - y
Student tickets cost $5.00 each and adult tickets cost $8.00 each. If they had $1,020 in ticket sales,then,
5x + 8y = 1020 - - - - - -1
Substituting x = 150 - y into equation 1, it becomes
5(150 - y) + 8y = 1020
750 - 5y + 8y = 1020
- 5y + 8y = 1020 - 750
3y = 270
y = 270/3 = 90
x = 150 - 90 = 60
