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PilotLPTM [1.2K]
3 years ago
8

Between 11 P.M. and 8:54 A.M.​, the water level in a swimming pool decreased by 11/20. Assuming that the water level decreased a

t a constant​ rate, how much did the water level drop each​ hour?
Mathematics
1 answer:
lisabon 2012 [21]3 years ago
6 0
1 each hour 20-11=9 there is 9 hours between 11pm and 8:54am so 1 per each hour hope that it helped ;)
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max2010maxim [7]

Answer:

1) 202.52

2) P107089

Step-by-step explanation:

Compound interest is calculated as

A = P (1 + r/n)^(nt), where

A = compounded interest

P = present value

r = interest

n = number of times interest applied

t = time taken

A = 200 (1 + 0.25%/30)^(30 * 5)

A = 200 (1 + 8.3*10^-5)^150

A = 200 * 1.0126

A = 202.52

Present Value Annuity Due is usually given by the formula

P = c*((1-(1+ i)^(-n))/i)*(1 + i ), where

P is the present value

C is the Cash flow per period

i is the interest rate and

n is the number of payments

P = 10000*((1-(1+ 12/1200)^(-1*12))/(12/1200))*(1+12/1200)

P = 113676

Also, it's worthy of note that

Effective Annual Rate = [(1 +stated rate/no. of compounding periods) ^no of compounding periods - 1]* 100

EAR = ((1+12/(12*100))^12-1)*100

EAR = 12.68%

And lastly, the

Future value = present value*(1+ rate)^time

113676 = Present value*(1+0.1268)^0.5

Present Value = 113676 / 1.1268^0.5

Present Value = 113676 / 1.0615

Present value = 107089

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3 years ago
What's 4x + 3 = 2x + 17
Svet_ta [14]

Answer:

x=7

Step-by-step explanation:

Move all terms containing x to the left side of the equation.

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Move all terms not containing x to the right side of the equation.

2x=14

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x=7

7 0
3 years ago
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natta225 [31]
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mash [69]

Answer:

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10 x 6 is what?

Took the test :p

7 0
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The graphs below are based on government data on unemployment for 2017.
lord [1]

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The two graph are related in this sense: take the first age group as reference. We know that 700 people from 16 to 19 are unemployed, and that those people represent 14% of the population, then we know that the 14% of the population between 16 and 19 is 700.

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3 0
3 years ago
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