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Gre4nikov [31]
3 years ago
10

If y is proportional to x and y = -15 when x = -20, what is the value of x when y = 12?

Mathematics
2 answers:
Kay [80]3 years ago
7 0
-20           x
------ = ---------
-15          12

-15x = -240
      x = -240/-15
      x = 16

hope this helps :)


Oksi-84 [34.3K]3 years ago
5 0
I think x would be 7 
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Find the equation of the line through the given point and perpendicular to the given line
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5 0
2 years ago
A total of 937 people attend the play. Admission was $2.00 for adults and $0.75 for students. The totral ticket sales amounted t
a_sh-v [17]

Answer:

x = students

y = adults

Linear Systems of Equations :

x + y = 937

0.75x + 2y = 1,109

Step-by-step explanation:

Step 1 : eliminate one of the variables

x + y = 937

0.75x + 2y = 1,109

-2(x + y = 937) = -2x - 2y = -1874

-2x - 2y = -1874

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We can eliminate y since -2y + 2y = 0

Step 2: Find x number of students.

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+0.75x = 1109

____________

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Check Answer :

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Therefore, there will be 612 students attending and 325 adults.

6 0
3 years ago
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