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Korvikt [17]
2 years ago
9

Another problem I need help setting up:/

Mathematics
1 answer:
AysviL [449]2 years ago
5 0
20000=32000(1-.09)^1
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Can you do 2 problems? and then someone else do the other 2 ty!
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Step-by-step explanation:

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3 years ago
X = -2y + 300 3y = 800 - 4x
devlian [24]

Answer:

<h2>x = 140, y = 80</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}x=-2y+300&(1)\\3y=800-4x&(2)\end{array}\right\\\\\text{Substitute (1) to (2):}\\\\3y=800-4(-2y+300)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\3y=800+(-4)(-2y)+(-4)(300)\\\\3y=800+8y-1200\\\\3y=8y-400\qquad\text{subtract}\ 8y\ \text{from both sides}\\\\-5y=-400\qquad\text{divide both sides by (-5)}\\\\y=80\\\\\text{Put it to (1):}\\\\x=-2(80)+300\\\\x=-160+300\\\\x=140

8 0
2 years ago
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If 3x - 2 = 13, what is the value of x?<br>0-5<br>• 5<br>0 -3.7<br>0 3.7<br>​
SIZIF [17.4K]
X=5 because you add 2 to both side and get 3x=15, and then you divide both sides by 3 to get x alone, and get 15/3 which equals 5
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Please help asap!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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First one is 42
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2 years ago
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