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Vikki [24]
3 years ago
13

Amelia plans to open a compound interest savings account with a $22,000 deposit at a bank with an annual interest rate of 5.25%.

How much more interest will she earn over 10 years if she chooses an account that compounds interest quarterly instead of annually?
Mathematics
1 answer:
mihalych1998 [28]3 years ago
8 0
Compound interest formula

<span>A = P(1+r/n)^(nt)</span>

annually:

quarterly:

A = 22,000 ( 1 + 0.0525/1 )^10  = 36,698.11

quarterly:

A = 22,000 ( 1 + 0.0525/4 )^(4*10 ) = 37,063.29

37,063.29 - 36,698.11 = 365.18


answer: compound interest quarterly earned $365.18 more than annually


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Tres compañías de navegación pasan por cierto puerto. La primera cada 8 días; la
lilavasa [31]

I think this is a least common multiple question

So they would all arrive on day 504, (which probably is a few years)

8 = 2 × 2 × 2

18 = 2 × 3 × 3

21 = 3 × 7

I might be right I might be wrong, IM not positively sure but yknow

4 0
2 years ago
The sum of the measures of angle Y and angle Z is 180 degrees. Angle Y measures (3x + 20) degrees and Angle Z measures x degrees
Minchanka [31]
A)
The question tells us that
y + z = 180
And
y=3x+20
z=x

So we put them in the first formula:

y + z = 180
(3x + 20) + x = 180

Add and get x to one side:
4x + 20 = 180
4x + 20 - 20 = 180-20
4x = 160
Divide both sides by 4
x = 40

B)
Put x back in to equation to get size of each angle:

Y =3x +20
Y=3(40)+20
Y=120+20
Y=140

Z=x
Z=40

Verify: y+z=180
140+40=180
180=180
8 0
2 years ago
Gerald has a punch bowl in the shape of a hemisphere as shown below.
zmey [24]

The closest to the maximum number of cups the punch bowl can hold is 30

<h3>How to determine the number of cups?</h3>

The given parameters are:

1 cup = 15 cubic inches

Diameter of bowl, d = 12 inches

The radius is the half of the diameter.

So, we have:

r = 6

The volume of the bowl is then calculated using:

V = \frac{2}{3}\pi r^3

This gives

V = \frac{2}{3}\pi * 6^3

Evaluate

V = 452.16

The maximum number of cups is then calculated using:

Cups = 452.16/15

Evaluate

Cups = 30.1444

Approximate

Cups = 30

Hence, the closest to the maximum number of cups the punch bowl can hold is 30

Read more about volumes at:

brainly.com/question/1972490

#SPJ1

6 0
2 years ago
Question 3 (1 point)
solong [7]

Answer:

let's do it

4 * 8 - 4 *7 =?

32-28=4

7 0
3 years ago
Rearrange each of the following formula so the pronumeral in the bracket becomes the subject of the equation
MakcuM [25]

Answer:

y = 9 - 3x

Step-by-step explanation:

9x + 3y - 27 = 0 ( add 27 to both sides )

9x + 3y = 27 ( subtract 9x from both sides )

3y = 27 - 9x ( divide through by 3 )

y = 9 - 3x

6 0
2 years ago
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