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ZanzabumX [31]
4 years ago
14

Initially invested $800 @ interest rate of 9%. How many years before the investment doubles?

Mathematics
1 answer:
otez555 [7]4 years ago
7 0

to solve this problem, you need to use this formula:

A=P(1+r/n)n⋅t

 A = total amount

P = principal or amount of money deposited,

r = annual interest rate

n = number of times compounded per year

t = time in years

but to save you time, it takes you 8 years and 16 days

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I need help with these three questions (please help me turn them into algebraic form) Thanks!
Ann [662]
The quotient means divide.....the difference means subtract
the quotient of 5 and the difference of a number and 3..
5 / (x - 3) <== ur expression

the product means multiply....decreased means subtract
the product of a number and 20 decreased by 11..
20x - 11 <== ur expression

the difference means subtract 
the difference of 30 and a number, multiplied by 2
2(30 - x) <== ur expression
7 0
3 years ago
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On a chilly day in New York, the temperature changed at -4 degrees per hour. How many hours did it take for the temperature to c
Aleks04 [339]

Answer:

9 hours

Step-by-step explanation:

36 degrees total /4 degrees per hour = 9 hours

6 0
3 years ago
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Find one-eight of the sum of 18 and the product of 6 and 1
4vir4ik [10]

Answer: 3

Step-by-step explanation:

The question is to calculate one-eight of the sum of 18 and the product of 6 and 1. This will be:

= 1/8 [18 + (6 × 1)]

= 1/8 [18 + 6]

= 1/8 × 24

= 3

The answer is 3.

8 0
3 years ago
I’m horrible at geometry, help please?
Korvikt [17]

Answer:

Longest side = 13 inches

Step-by-step explanation:

Perimeter of triangle =  30 inches

x + 4x - 8 + 2x +3    =  30

x + 4x + 2x - 8 + 3 = 30

                   7x - 5 = 30

                          7x = 30 + 5

                          7x = 35

                            x = 35/7

         x = 5

Longest side is the hypotenuse.

Longest side = 2x + 3 = 2*5 + 3 = 10 + 3 = 13 inches

4 0
4 years ago
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Why wuld 8/4 be considerd a whole number
kumpel [21]

Answer:

because 8/4=2

Step-by-step explanation:

4/4=1

8/4=2

it's because the numerator is bigger if it were 6/4 it would be a mixed number but the eight goes in to 4 directly 2 time so therefore it's 2.

3 0
3 years ago
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