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postnew [5]
2 years ago
7

Movie tickets are $8 for shows after 6 pm and $5.50 for shows before 6 pm. If 80 tickets are sold for a total of $575, which sys

tem of equations could be used to find the number of each type of ticket sold? *
1.x+y=8; 5.50x+80y=575
2.x+y=575; 5.50x+8y=80
3.x+y=80; 575x+8y=5.50
4.None of these
5.x+y=80; 5.50x+8y=575​
Mathematics
1 answer:
Dominik [7]2 years ago
5 0
The answer is 5. x+y=80; 5.50x+8y=575
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sveticcg [70]
<h2>>>> Answer <<<</h2>

Let's check which polynomial is divisible by ( x - 1 ) using hit , trial and error method .

A ( x ) = 3x³ + 2x² - x

The word " divisible " itself says that " it is a factor "

Using factor theorem ;

Let;

=> x - 1 = 0

=> x = 1

Substitute the value of x in p ( x )

p ( 1 ) =

3 ( 1 )³ + 2 ( 1 )² - 1

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This implies ;

A ( x ) is not divisible by ( x - 1 )

Similarly,

B ( x ) = 5x³ - 4x² - x

B ( 1 ) =

5 ( 1 )³ - 4 ( 1 )² - 1

5 ( 1 ) - 4 ( 1 ) - 1

5 - 4 - 1

5 - 5

0

This implies ;

B ( x ) is divisible by ( x - 1 )

Similarly,

C ( x ) = 2x³ - 3x² + 2x - 1

C ( 1 ) =

2 ( 1 )³ - 3 ( 1 )² + 2 ( 1 ) - 1

2 ( 1 ) - 3 ( 1 ) + 2 - 1

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0

This implies ;

C ( x ) is divisible by ( x - 1 )

Similarly,

D ( x ) = x³ + 2x² + 3x + 2

D ( 1 ) =

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This implies ;

D ( x ) is not divisible by ( x - 1 )

<h2>Therefore ; </h2>

<h3>B ( x ) & C ( x ) are divisible by ( x - 1 ) </h3>
6 0
3 years ago
Solve for x and then find the measure of angle B <br> Angle B=
Savatey [412]
8x + 6=4x + 38
4x  = 32
  x = 8
 
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2 years ago
Help help help please ​
Veronika [31]

Answer:

{9,14,20}

Step-by-step explanation:

hope it helps

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2 years ago
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