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JulsSmile [24]
3 years ago
12

A drama club earns $1040 from a production. It sells a total of 64 adult tickets and 132 student tickets. An adult ticket costs

twice as much as a student ticket.Write a system of linear equations that represents this situation. Let x represent the cost of an adult ticket and y represent the cost of a student ticket.
Mathematics
2 answers:
STatiana [176]3 years ago
8 0
16x + 33y = 260, I think this is correct. Hope this helps!:)
Vika [28.1K]3 years ago
4 0
X= cost of adult tickets
x= 2y= cost of adult ticket
y= cost of student tickets

64 multiplied by the cost of an adult ticket plus 132 multiplied by the cost of a student ticket equals the total earned of $1040.

64x+132y= $1040
Substitute x=2y into equation
64(2y)+132y=1040
128y+132y=1040
260y=1040
Divide both sides by 260
y= $4 cost of student ticket

2y= cost of adult ticket
Substitute y=$4 to find adult cost
2(4)= $8 cost of adult ticket

Student ticket= $4
Adult ticket= $8

Hope this helps! :)

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Differentiate these with respect to <em>θ</em> :

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d<em>x</em>/d<em>θ</em> = d<em>r</em>/d<em>θ</em> cos(<em>θ</em>) - <em>r(θ</em>) sin(<em>θ</em>)

In polar coordinates, we have

<em>y(θ)</em> = <em>r(θ)</em> sin(<em>θ</em>)

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and when <em>θ</em> = <em>π</em>/3, we have <em>y</em> (<em>π</em>/3) = 13√3/2 and <em>x</em> (<em>π</em>/3) = 13/2.

The slope of the tangent line to the curve is d<em>y</em>/d<em>x</em>. By the chain rule,

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When <em>θ</em> = <em>π</em>/3, the slope is

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<em>y</em> = -(<em>x</em> - 338)/(17√3)

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