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Katena32 [7]
3 years ago
13

I need help with this please

Mathematics
2 answers:
kodGreya [7K]3 years ago
6 0
1/5(2x - 10) + 4x = -3(1/5x + 4)
0.4x - 2 + 4x = -0.6x - 12
4.4x - 2 = -0.6x - 12
5x - 2 = -12
5x = -10
x = -2
mario62 [17]3 years ago
4 0
\dfrac{1}{5} (2x - 10) + 4x = -3 ( \dfrac{1}{5}x + 4)

Apply distributive property to distribute 1/3 and -3:

\dfrac{2}{5} x -  2 + 4x = - \dfrac{3}{5}x - 12

Sort all the x to the left and the constants to the right:

\dfrac{2}{5} x + \dfrac{3}{5}x  + 4x = - 12 + 2

Simplify:

5x =  -10

Divide by 5:

x = -2


\boxed { \boxed {\text {Answer: x = -2}}}
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Answer:

<em>Test statistic </em>

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<u><em>Step(i):-</em></u>

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<em>Null hypothesis is accepted</em>

<em>Test the hypothesis that the true mean quiz score is 8.0 against the alternative that it is not greater than 8.0</em>

<em></em>

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