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Yuki888 [10]
3 years ago
9

-1 3/5 divided by -2/3 Write as a mixed number

Mathematics
1 answer:
mihalych1998 [28]3 years ago
8 0

Answer:

2 2/5

Step-by-step explanation:

Dividing two fractions is the same as multiplying the first fraction by the reciprocal of the second fraction. First convert the first into the improper fraction -8/5. Now because when dividing fractions you keep the first on, change to multiplication and flip the second equation you have

-8/5 x -3/2=?

Now you just multiply across as you would and normal time multiplying fractions. Remember a negative divided by a negative is a positive! And not after you keep, change, flip and multiply you are left with 24/10. Which is equal to 12/5 but you wanted a mixed number so we convert it into 2 2/5

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erik [133]

Answer:

B) 22.5 inches

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3 years ago
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The manufacturer of a new compact car claims the miles per gallon (mpg) for the gasoline consumption is approximately normal wit
lyudmila [28]

Answer:

The probability the average mpg is less than 28 mpg is 0.8413.

Step-by-step explanation:

Given : The manufacturer of a new compact car claims the miles per gallon (mpg) for the gasoline consumption is approximately normal with

Mean \mu=26 mpg and standard deviation \sigma=12 mpg.

Number of sample n=36

To find : What is the probability the average mpg is less than 28 mpg?

Solution :

Applying z-score formula,

z=\dfrac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

The portability is given by, P(X

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=P(\dfrac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

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Using z-table,

=0.8413

Therefore, the probability the average mpg is less than 28 mpg is 0.8413.

6 0
3 years ago
How do I convert these improper fractions to mixed numbers: 29/4, 13/6, 73/9, 65/8, 17/2, 5/2, 25/4, 43/7, 29/4, 73/9, 19/3, 43/
slava [35]
Divide the numerator by the denominator 
use the answer as the whole number
use the remainder as the numerator
keep the deniminator

the answers: 
7  1/4
2   1/6
8  1/8
8  1/2
2  1/2
6  1/4
6  1/7
7  1/4 (same question)
8  1/8 (same question)
6  1/3
2  1/5
9  1/10
6  1/6

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What is the value of the expression? 4!(7 – 4)!
Archy [21]

The answer to your question is 144

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Simplify: 4x^3+5y^3+2x^3+7y
vladimir1956 [14]
C because they added up to that number
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