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Viefleur [7K]
3 years ago
12

Divide 1 1/5 ÷ 2/3 plz awser in a mixed number and in simplest form.

Mathematics
1 answer:
katovenus [111]3 years ago
3 0

1 \frac{4}{5}

change 1 \frac{1}{5} to an improper fraction = \frac{6}{5}

to divide change  ÷ to × and turn the divisor upside down

\frac{6}{5} ÷ \frac{2}{3} = \frac{6}{5} × \frac{3}{2}

=  \frac{18}{10} = \frac{9}{5} = 1 \frac{4}{5}


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Step-by-step explanation:

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What is the volume of a cube with a higher base and width of 4cm
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A demographer wants to measure life expectancy in countries 1 and 2. Let μ1 and μ2 denote the mean life expectancy in countries
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Answer:

For this case we want to test if life expectancy in country 1 is more than 10 years lower than in country 2, (alternatibe hypothesis), so then the system of hypothesis are:

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Or equivalently:

Null hypothesis: \mu_1 - \mu_2 \leq 10

Alternative hypothesis:\mu_1 - \mu_2 >10

Step-by-step explanation:

Previous concepts

A hypothesis is defined as "a speculation or theory based on insufficient evidence that lends itself to further testing and experimentation. With further testing, a hypothesis can usually be proven true or false".  

The null hypothesis is defined as "a hypothesis that says there is no statistical significance between the two variables in the hypothesis. It is the hypothesis that the researcher is trying to disprove".

The alternative hypothesis is "just the inverse, or opposite, of the null hypothesis. It is the hypothesis that researcher is trying to prove".

Solution to the problem

For this case we want to test if life expectancy in country 1 is more than 10 years lower than in country 2, (alternatibe hypothesis), so then the system of hypothesis are:

Null hypothesis: \mu_1 \leq \mu_2 -10

Alternative hypothesis:\mu_1 > \mu_2 -10

Or equivalently:

Null hypothesis: \mu_1 - \mu_2 \leq 10

Alternative hypothesis:\mu_1 - \mu_2 >10

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Get photo math an app just for math it gives u the answers and how to solve it
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3 years ago
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sladkih [1.3K]

Answer:

-1

—— = -0.25000

 4            

Step-by-step explanation:

5 0
3 years ago
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