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Sati [7]
3 years ago
11

2/-3 divided by 2 3/4 =

Mathematics
1 answer:
PSYCHO15rus [73]3 years ago
7 0

Answer:

The answer is -4\frac{1}{8}

Step-by-step explanation:

Given:

2/-3 divided by 2 3/4 .

Now, to solve it:

2/-3 divided by 2 3/4

First convert the mixed fraction into improper:

\frac{2}{-3}\div \frac{11}{4}

Now, to change the division into multiplication which reciprocal one of the fraction:

=\frac{-3}{2}\times \frac{11}{4}

=\frac{-33}{8}

=-4\frac{1}{8}

Therefore, the answer is -4\frac{1}{8}.

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8 0
3 years ago
Two computers just scanned for viruses at the same time. Computer A runs a virus scan every 2.75 days. Computer B runs a virus s
Elis [28]

Let the time taken by computer for virus scan be, 'x' days

We are given that Computer A runs a virus scan in every 2.75 days and Computer B runs a virus scan in every 3.5 days.

<h3>Amount of work done by computer A⤵️</h3>

Amount of work done in one day = \tt\frac{1}{2.75}

Amount of work done in x days = \tt\frac{x}{2.75}

<h3>Amount of work done by Computer B⤵️</h3>

Amount of work done in one day = \tt\frac{1}{3.5}

Amount of work done in x days = \tt\frac{x}{3.5}

Since, They are doing the same work the amount of work done is 1.

\sf \:  \frac{x}{2.75}  +  \frac{x}{3.5}  = 1

Solve for x ~

\sf \frac{x}{ \frac{11}{4} }  +  \frac{x}{ \frac{7}{2} }  = 1

\sf \frac{4x}{11}  +  \frac{2x}{7}  = 1

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\sf \: x =  \frac{77}{50}

\boxed{ \bf \: x = 1.54}

➪ <em>Thus, the time taken when both computers run a virus scan at the same time again is, 1.54 days</em>

8 0
2 years ago
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