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4 years ago

What is the percent decrease of 84 seconds to 8 seconds? (I'm bad at percents!) D:

Mathematics

2 answers:

nikklg [1K]4 years ago

8 0

93% is the percent of seconds, since its almost close to zero

Allushta [10]4 years ago

7 0

Answer:

Decreased percentage 90.47%

Step-by-step explanation:

Given : decrease of 84 seconds to 8 seconds

To find : percentage

Solution : We have given

Initial value : 84 second

Final value : 8 seconds.

Decreased value : 84 -8

Decreased value : 76 .

Decreased percentage : $\frac{decreased\value}{initial\value}*100$ .

Plugging the values.

Decreased percentage : $\frac{76}{84}*100$ .

90.47%

Therefore, Decreased percentage 90.47%

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Answer:

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Step-by-step explanation:

we have

$x^{2} -36=5x$

we know that

The formula to solve a quadratic equation of the form

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is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2} -36=5x$

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therefore

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