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DerKrebs [107]
3 years ago
5

9x+5y=8 3x–y=4 what is the y-value of the solution to the system?

Mathematics
1 answer:
CaHeK987 [17]3 years ago
3 0

Answer:

y=7.51

Step-by-step explanation:

First, you have to simplify one of the equations down

3x-y=4

y=-4+3x

Second, you insert the value of y into the other equation and then solve for x

9x+5(-4+3x)=8

9x-20+15x=8

24x=28

x=1.17

Last, insert the value of x into the original equation and then solve for y

y=4+3(1.17)

y=7.51

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2 years ago
Read 2 more answers
NEED HELP ASAP ILL MAKE YOU BRAINLIEST
Hunter-Best [27]

y = 12000x + 35000


When Mr. Nicolas began recording, it means, at 0 hour, how many tortillas was produced?


Subs x by 0.


y = 12000.0 + 35000

y = 0 + 35000

y = 35000


When Mr. Nicolas began recording the data, 35,000 tortillas had already been produced


The total number of tortillas produced 2 hours after the he began, it means, when x = 2


y = 12000 . 2 + 35000

y = 24000 + 35000

y = 59000


The total number of tortillas produced 2 hours after he began recording the data was 59,000


The total number of tortillas produced _ hours after he began recording the data was 85,000


Now we have y but not x.


y = 12,000x + 35,000

85,000 = 12,000x + 35,000

85,000 - 35,000 = 12,000x

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Rounding

x = 4,167

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