I’m really lost...can someone please help me!!!!

Mathematics

1 answer:

dedylja [7]3 years ago

3 0

Answer:

I cant see the question. Can you upload it again

Step-by-step explanation:

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You think that $39,500 is a good salary and are interested in a job with Fast Pax. What other information might you want to know

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3 years ago

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X-y+z=-4 3x+2y-z=5 -2x+3y-z=15 How do I solve this?

Lera25 [3.4K]

$1)\ \ \ x-y+z=-4\ \ \ \Rightarrow\ \ \ z=-4-x+y\\\\2)\ \ \ 3x+2y-z=5 \\.\ \ \ \ \Rightarrow\ \ 3x+2y-(-4-x+y)=5 \\.\ \ \ \ \Rightarrow\ \ 3x+2y+4+x-y=5 \\.\ \ \ \ \Rightarrow\ \ 4x+y=1\\\\3)\ \ \ -2x+3y-z=15\\.\ \ \ \ \Rightarrow\ \ -2x+3y-(-4-x+y)=15\\.\ \ \ \ \Rightarrow\ \ -2x+3y+4+x-y=15\\.\ \ \ \ \Rightarrow\ \ -x+2y=11\\--------------------\\$

$z=-4-x+y\\.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ and\\ \left \{ {{4x+y=1\ \ \ \ } \atop {-x+2y=11\ /\cdot4}} \right. \\\\\left \{ {{4x+y=1\ \ \ \ } \atop {-4x+8y=44}} \right. \\-------\\y+8y=1+44\\9y=45\ /:9\\y=5\\\\-x+2y=11\ \ \ \Rightarrow\ \ \ x=2y-11\ \ \ \Rightarrow\ \ \ x=2\cdot5-11=-1\\\\z=-4-x+y=-4-(-1)+5=-4+1+5=2\\\\Ans.\ x=-1\ \ \ and\ \ \ y=5\ \ \ and\ \ \ z=2$

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3 years ago

Tabitha has a coupon that will give her 30% off her total purchase at her favorite bath & candle store. If her total is $186

o-na [289]

Answer:

Step-by-step explanation:

186 devised by 30 is the answer

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4 years ago

(2n4 - 13n3 + 32n2 – 51n – 54) = (2n – 9)

Bezzdna [24]

Answer:

2n-9

Step-by-step explanation:

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3 years ago

Alenkasestr [34]

Answer:

need more characters

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3 years ago