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cluponka [151]
3 years ago
9

Tickets to a school play cost $3 for students and $8 for adults. On opening night, $1,000 was collected and 150 tickets sold. Us

e substitution to solve a system of equations to find how many of each kind of ticket were sold?
Mathematics
1 answer:
Masteriza [31]3 years ago
6 0

Answer:

s+a=150

3s+8a=1000

a=-s+150

3s-8s+1200=1000

-5s=-200

s=40

a=110

40 student and 110 adult tickets were sold

Step-by-step explanation:

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Answer:

The minimal number for the objective function P =20x+16y is: 780

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Step-by-step explanation:

We are given a system of inequalities as:

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On plotting these inequalities we get the boundary points as:

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at (30,60) we get:

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at (30,15) we get:

P= 840

This  means that the minimal value of the function is 780

and the value exist at (15,30)

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