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Brums [2.3K]
3 years ago
5

Find the percent of increase or decrease? N to 4/5n?

Mathematics
1 answer:
d1i1m1o1n [39]3 years ago
8 0

Answer:

Decrease by 20%.

Step-by-step explanation:

We have to find the percent of increase or decrease from n to \frac{4}{5}n.

Now, \frac{4}{5}n = 0.8n < n

So there is a decrease fro n to \frac{4}{5}n.

Now, the percentage of decrease will be given by  

= [ \frac{\textrm {Original Value - Final Value}}{\textrm {Original Value}}]\times 100 \%

= [ \frac{n - 0.8n}{n}]\times 100 \%  

= 20% (Answer)

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What is the slope of a line that is perpendicular to the line whose equation is 7x−3y=10?
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Since this equation is already in standard form, there is no need to convert it. Standard form is Ax + By = C. In this equation, 7 = A, 3 = B, and 10 = C. From standard form, Ax + By = C equals negative A over B.

7x + 3y = 10

↓

\displaystyle\ m= \frac{-7}{-3}

Then you'd simplify.

\displaystyle\ m=\frac{7}{3}

The slope cannot be simplified any more, so this would be the final answer.

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<em>- Marlon Nunez</em>

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3 years ago
An experiment is to be conducted using environmentally safe peppermint oil to study the effectiveness of deterring mice from inf
shutvik [7]

Answer:

Option E is correct.

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Step-by-step explanation:

The treatments in this type of statistical experiment refers to the part of the experiment that is tweaked, controlled or varied in the cases being studied. In this experiment, the method of essential oil dispersal is what is varied in the two experimental cases of this study.

Experimental Unit refers to the subject matters, who are participants in the experiment. They are the ones that the effect of the treatments is tested upon.

For this study, the experimental units are the mice subjected to either of the two methods of peppermint oil dispersal.

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5 0
3 years ago
An object has an area of 12 square centimeters. what could the length and width be
LUCKY_DIMON [66]
The length and width can 6 and 2 or 3 and 4.
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Answer:

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Step-by-step explanation:

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First equivalent ratio

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Second equivalent ratio

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