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3 years ago

200 books ; 75% decrease

Mathematics

2 answers:

noname [10]3 years ago

7 0

The answer is 150 books she loses 150 books

love history [14]3 years ago

5 0

Answer:

We have 200 books, and they decrease a 75%. This means that we have to find the difference between the 200 books and its 75%. So, first, we have to find how many books are 75%.

0.75(200)=150

If the books decrease a 75%, this means that after the decrease there are only 50 books, because

200-150=50.

<h3>Therefore, the 75% decrease of 200 books is 50 books, which represent the final 25%</h3>

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Serjik [45]

$A=P(1+r)^t$

where A=final amount

P=principal

r=rate in decimal form

t=time in years

we are given that P=500, r=12%=0.12

we want to find A when t=10, 20, and 30

$A=500(1+0.12)^t$

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when t=10, $A=500(1.12)^{10}=$1552.92$

when t=20, $A=500(1.12)^{20}=$4823.15$

when t=30, $A=500(1.12)^{30}=$14980.96$

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makvit [3.9K]

Answer:

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4 years ago

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