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2 years ago

May someone help me 5x+8=7x

Mathematics

2 answers:

avanturin [10]2 years ago

7 0

X=4 because minus 5x from 7x then you get 8=2x divide by 2 on both sides and you get x=4

Korvikt [17]2 years ago

4 0

5x-7x=-8
-2x=8
x=-4
this is how to solve it

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A principal of $3600 is invested at 7.5% interest, compounded annually. How much will the investment be worth after 6 years?

zaharov [31]

After 6 years the investment is $5555.88

Step-by-step explanation:

A principal of $3600 is invested at 7.5% interest, compounded annually. How much will the investment be worth after 6 years?

The formula used to find future value is:

$A(t)=P(1+\frac{r}{n})^{nt}$

where A(t) = Accumulated amount

P = Principal Amount

r = annual rate

t= time

n= compounding periods per year

We are given:

P = $3600

r = 7.5 %

t = 6

n = 1

Putting values in formula:

$A(t)=P(1+\frac{r}{n})^{nt}\\A(t)=3600(1+\frac{0.075}{1})^{6*1}\\A(t)=3600(\frac{1.075}{1})^6\\A(t)=3600(1.075)^6\\A(t)=3600(1.543)\\A(t)=5555.88$

So, After 6 years the investment is $5555.88

Keywords: Compound Interest formula

Learn more about Compound Interest formula at:

#learnwithBrainly

8 0

3 years ago

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kiruha [24]

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Step-by-step explanation:

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6 0

2 years ago

(-8)^-2 / 3^-4 simplify the expression. Write your answer using only positiv exponents.

spin [16.1K]

Answer:

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Step-by-step explanation:

(-8)^-2 / 3^-4 =

= 3^4 / (-8)^2

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nata0808 [166]

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