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allsm [11]
3 years ago
5

Please answer this!! The school's enrollment dropped 12.8% from last year. This year's enrollment was 252 students. What was las

t year's enrollment?
Mathematics
1 answer:
wlad13 [49]3 years ago
8 0
I hope this is right- I think the answer is 284.25 approximately or 284 students.
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Please help!!!
svetoff [14.1K]

Answer:

Step-by-step explanation:

<u>Compound Interest</u>

It's the type of financial calculations that includes the interest of previous periods into the new interests earned by some initial investment or principal P.

If we want to compute the final value FV of a series of n payments R at a fixed compound interest rate i, then

FV=F_m\cdot R

Where

\displaystyle F_m=\frac{(1+i)^n-1}{i}

The question provides us the following data

i=10% compounded twice a year

n=3 1/2 years

FV=15,000

We need to convert the number of periods and the interest rate to a semester base:

\displaystyle i=\frac{10}{100\cdot 2}=0.05

n=3.5\cdot 2= 7\  semesters

Let's calculate Fm

\displaystyle F_m=\frac{(1+0.05)^7-1}{0.05}=8.142

Knowing that

FV=F_m\cdot R

Solving for R

\displaystyle R=\frac{FV}{F_m}=\frac{15,000}{8.142}=1,842.30

Sara should deposit $1,842.30 twice a year to have the down payment for her own restaurant

3 0
3 years ago
How can you use a pattern to write and solve an equation
MakcuM [25]

Answer:

Toothpick patterns

Step-by-step explanation:


4 0
3 years ago
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The length of a rectangle is three times its width. if the area of the rectangle is 75 in2, find its perimeter.
UkoKoshka [18]

Answer:

  40 in

Step-by-step explanation:

For a width of w, the length is 3w and the area and perimeter are ...

  A = LW = (3w)(w) = 3w^2

  P = 2(L+W) = 2(3w +w) = 8w

We are given the area, so we can find w to be ...

  75 in^2 = 3w^2

  25 in^2 = w^2 . . . . . divide by 3

  5 in = w . . . . . . . . . square root

Then the perimeter is ...

  P = 8w = 8(5 in) = 40 in

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Marat540 [252]

Answer:

A

Step-by-step explanation:

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2 years ago
Find the radius of the circle. Leave your answer in simplest radical form.
dangina [55]
44 that is probably the answer since it's half
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2 years ago
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