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sladkih [1.3K]
3 years ago
15

-3/4 - 1/5 divide by 2/5 = ? can you explain how to work this problem also

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
7 0

<u>Answer:</u>

-2\frac{3}{8}

<u>Step-by-step explanation:</u>

We are given the following expression and we are to solve it:

\frac{-\frac{3}{4} -\frac{1}{5} }{\frac{2}{5} }

Firstly, we will take the LCM of the fractions in the denominator to make it a single fraction and then solve further:

\frac{\frac{-3(5)-1(4)}{20} }{\frac{2}{5} }

\frac{\frac{-15-4}{20} }{\frac{2}{5}}

\frac{-\frac{19}{20} }{\frac{2}{5} }

Changing the division into multiplication by taking a reciprocal of the denominator:

-\frac{19}{20} *\frac{5}{2}

-\frac{19}{8}

-2\frac{3}{8}

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Maksim231197 [3]

Answer:

Answer is   3^{4-n}

Step-by-step explanation:

It is 29 in place of 27 . and Its a geometric series with first term 27 and common ratio \frac{1}{3}

and  general formula for  given sequence is given by  a (r)^{n-1}

so plugging the value of a and r ,we get

   27 ([tex]\frac{1}{3})^{n-1}[/tex]

   3^3(\frac{1}{3} )}^{n-1}

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5 0
3 years ago
FREE BRAINLIEST. PLEASE ANSWER STEPBY STEP 1. 2. 3.
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Answer:

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Step-by-step explanation:

First do whats in the parenthesis:

(8+18/9)

Using PEMDAS again, we do the division first:

(8+2)

Now addition:

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Now subtraction:

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8

3 0
3 years ago
I need help immediately!!!!!!!! How do I find parallel lines with no graph? Say you have y=x-10, what is parallel to that? It ma
Tanzania [10]

Parallel lines always have the same slope. If we use the example you gave, y = x - 10, the slope of the line is 1. We just have to find another line with a slope of 1. It doesn't matter what the y-intercept is, the slope just has to be the same. Some examples of parallel lines to y = x-10 are y = x, y = x + 5, or y = x - 5. Hope this helps!

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4 years ago
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Answer:

Probability that both of them use it = 0.3945

Step-by-step explanation:

Given:

Student use app = 63%

Number of chosen student = 2

Computation:

Assume total number of student = 100%

So, probability that both of them use it.

⁶³C₂ / ¹⁰⁰C₂

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Therefore, probability that both of them use it = 0.3945

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3 years ago
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Answer:

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