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sashaice [31]
2 years ago
7

Y=9x-2

Mathematics
1 answer:
borishaifa [10]2 years ago
8 0
Y = 9x - 2
3x - 2y = 7
so sub in 9x - 2 for y in the 2nd equation and solve for x

3x - 2(9x - 2) = 7
3x - 18x + 4 = 7
3x - 18x = 7 - 4
-15x = 3
x = -3/15
x = -1/5 or - 0.2 <===
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Need help ASAP!!!! Been thinking for a long time.
Keith_Richards [23]

Answer:

81%

Step-by-step explanation:

First, let's set up 3 equations:

w*0.6 = x

x*1.5=y

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6 0
2 years ago
Select the correct answer. what is the approximate solution to this equation? a. b. c. d.
Diano4ka-milaya [45]

The approximate solution to the given equation is x ≅ 148.4. The correct option is C. x ≈ 148.4

<h3>Solving equations</h3>

From the question, we are to determine the approximate solution to the given equation,

The given equation is

4lnx -8 =12

First, add 8 to both sides

4lnx -8+8 =12+8

4lnx =20

Now, divide both sides by 4

ln x =\frac{20}{4}

ln x = 5

Take the exponents of both sides

e^{lnx} = e^{5}

x = 148.413

x ≅ 148.4

Hence, the approximate solution to the given equation is x ≅ 148.4. The correct option is C. x ≈ 148.4

Learn more on Solving equations here: brainly.com/question/26831160

#SPJ1

3 0
1 year ago
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