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UkoKoshka [18]
3 years ago
10

What is the common point between lines y = -x + 7 and y = 3x + 10?

Mathematics
2 answers:
bogdanovich [222]3 years ago
4 0
Set -x+7 = 3x+10
4x = -3

x = -3/4

y = 7.75
Pavel [41]3 years ago
4 0
(-0.75,7.75) if this is incorrect and doesn't help I'm sorry.
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Two types of tickets were sold for an upcoming concert: adult tickets and child tickets. In total, there
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Answer:

Adult ticket is $60

Child ticket is $32

Step-by-step explanation:

Let x = price of adult ticket

     y = price of child ticket

(1)    175x + 103y = 13796               (2)    2x + 2y = 184

                                                                 x + y = 92

                                                                       y = 92 - x

      175x + 103(92 - x) = 13796

      175x + 9476 - 103x = 13796

       72x = 4320

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                                                                        y = 32

4 0
2 years ago
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Goshia [24]

Answer:

d

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4 0
3 years ago
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Answer is From all those aforementioned, the true statement is: Thanh’s grade is 2.5 standard deviations below the mean of the test grades.

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8 0
2 years ago
Anna bought p packages of paper plates at Party City that cost $4 per package and c packages of cups that cost $3 per package. S
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2 years ago
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professor190 [17]
Let the number be n.

Then:

n^2 + (1/n)^2 = 82/9; find n.  Find the LCD; it is 9n^2.

Mult all 3 terms by 9n^2:
                                                                  82*9n^2
9n^4 + 9 = (82/9)(9n^2)  =>    9n^4 + 9 = ------------  
                                                                        9
Then 9n^4 - 82n^2 + 9 = 0

I used my graphing calculator to find that n = 3.  

Let's check:     is 3^2 + (1/3)^2 = 82/9?
                        Is   9   + 1/9 = 82/9?
                        Is  81 + 1 = 82?   YES.  So, n=3 is a solution.

7 0
3 years ago
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