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2 years ago

I need help on this question

Mathematics

2 answers:

QveST [7]2 years ago

8 0

2003-2004 would be the larest decrease

Harrizon [31]2 years ago

6 0

Out of all the pairs of years, the transition between year 2003 and 2004 had the largest total decrease.

A:2003-2004

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4400 dollars is placed in an account with an annual interest rate of 7.5%. To the nearest tenth of a year, how long will it take

Katarina [22]

Answer:

Step-by-step explanation:

The equation for the amount of money in an account after a certain amount is deposited and compounded after t years once per year is

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

Our A(t) = 33800, P = 4400, r = .075 and we are looking for t. Filling in:

$33800=4400(1+.075)^t$ and

$33800=4400(1.075)^t$

Begin by dividing both sides by 4400 to get

$7.681818182=1.075^t$

The only way to move that t our from its current position as an exponent is to take the natural log of both sides and follow the rules for natural logs:

$ln(7.6181818182=ln(1.075)^t$

The power rule of natural logs says we can move that exponent down in front, giving us:

$ln(7.681818182)=t*ln(1.075)$

Divide both sides by ln(1.075) to get

$\frac{ln(7.61818182)}{ln(1.075)} =t$

Do this division on your calculator to get

t = 28.2 years

6 0

3 years ago

Read 2 more answers

Each month Allison gets a $15 allowance and earns $100 working at the theater. She uses the expression 15x+100y to keep track of

Marizza181 [45]

Step-by-step explanation:

The expression for he earning of Allison and her allowance is as follows :

15x+100y

Part A

Variables are x and y. Coefficients are 15 and 100.

Part (B)

There are two terms in this expression. + is used to separate the terms. 15x and 100y are the terms.

Part (C) As $15 shows her earning from allowances. Hence, 15x shows allowance.

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3 years ago

What is the slope of the line that passes through the given points? <br><br> (2,12) and (6,11)

Archy [21]

Answer:

m= - 1/4

Step-by-step explanation:

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3 years ago

How do you get the answer 1 and 1/4-3/8

JulijaS [17]

U first find the common denominator which is 8

Then subtract to get 7/8

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2 years ago

Blake is working his way through school. he works two part time jobs for a total of 31 hours a week. job pays $5.80 per hour and

AnnZ [28]

are their any answer choices?

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3 years ago