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3 years ago

What is the value of m? 2/3m + 3 - 5/6m = -15

2 answers:

7 0

2 over 3 (m) + 3 - 5 over 6 (m) - [-15] ➡ 0
5 over 6 (simplify )
2 over 3 (m) + 3 - 5 over 6 (m) - [-15] ➡0
2 over 3 (simplfiy)
[2 over 3 (m) + 3 - 5m over 6] - [-15] ➡ 0
2m + 9 over 3
2m + 9 over 3 - 5m over 6 - -15➡0
18 - m over 6
18 - m over 6 - [-15] ➡ 0
108 - m over 6
108 - m over 6 (6) (0)
So, the value of "m" would have to be "108"
m= 108

riadik2000 [5.3K]3 years ago

4 0

This is why you have a calculator m=3

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Ede4ka [16]

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3 years ago

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Mice21 [21]

Answer:

We accept the alternate hypothesis. We conclude that the mean lifetime of tires is is less than 33,000 miles.

Step-by-step explanation:

We are given the following in the question:

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Sample size, n = 18

Alpha, α = 0.05

Sample standard deviation, s = 1200 miles

a) First, we design the null and the alternate hypothesis

$H_{0}: \mu = 33000\text{ miles}\\H_A: \mu < 33000\text{ miles}$

b) Level of significance:

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c) We use One-tailed t test to perform this hypothesis.

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$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$ Putting all the values, we have

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$t < -1.7396$

Since,

$t_{stat} < t_{critical}$

e) We fail to accept the null hypothesis and reject it as the calculated value of t lies in the rejection area.

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3 years ago

Can you please solve the following equation?

AlladinOne [14]

Answer:

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Step-by-step explanation:

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