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tigry1 [53]
2 years ago
14

Paco says that the solution to 2/5x - 1 = 9 is x = 4. Do you agree? Explain.

Mathematics
1 answer:
QveST [7]2 years ago
8 0

Answer:

yes x=4

Step-by-step explanation:

2/5x -1=9

+1 +1

2(2/5x)=(10)2

5x/5=20/5

X=4

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Answer:

The first one

Step-by-step explanation:

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Step-by-step explanation:

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Help please! <br>using quadratic formula <br>round ti nearest hundred ​
Lera25 [3.4K]

Answer:

x = 0.19 or x = -0.76

Step-by-step explanation:

Equation: 7²-4x = 2

reordering the equation,

7x²-4x-2 = 0

Applying,

x = [-b±√(b²-4ac)]/2a..................... Equation 1

From the question,

Given: a = 7, b = -4, c = -2

Substitute these values into equation 1

x = [-4±√(-4²-(2×7×-2)]/(2×7)

x = [-4±√(16+28)]/14

x = (-4±√44)/14

Either

x = (-4+√44)/14

x = (-4+6.63)/14

x = 2.63/14

x = 0.19

or

x = (-4-√44)/14

x = (-4-6.63)/14

x = -10.63/14

x = -0.76

3 0
3 years ago
20. Write an equation in slope-intercept form for the line that has a slope
lukranit [14]

Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
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