8.4 divided by 10 = ?

Mathematics

2 answers:

ASHA 777 [7]3 years ago

7 0

Answer:

0.84

If you're looking for a percentage it'd be 84%

Step-by-step explanation:

mylen [45]3 years ago

5 0

<h2><u>Answer:</u></h2>

8.4 / 10 = 0.84

When you multiply by powers, you move the decimal point to the left.

When you divide powers you move the decimal point to the right.

For example, when you are dividing 8.4 by 10 to the power of 1, or just ten 10,

you need to move the decimal point one place to the right.

Hope this helps!

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At an effective annual interest rate of i > 0, each of the following two sets of payments has present value K: (i) A payment

IgorLugansk [536]

Answer:

The present value of K is, $K=251.35$

Step-by-step explanation:

First of all, we need to construct an equation system, so

$(1)K=\frac{169}{(1+i)} +\frac{169}{(1+i)^{2}}$

$(2)K=\frac{225}{(1+i)^{2}} +\frac{225}{(1+i)^{4}}$

Then we equalize both of them so we can find $i$

$(3)\frac{169}{(1+i)} +\frac{169}{(1+i)^{2}}=\frac{225}{(1+i)^{2}} +\frac{225}{(1+i)^{4}}$

To solve it we can multiply $(3)*(1+i)^{4}$ to obtain $(1+i)^{4}*(\frac{169}{(1+i)} +\frac{169}{(1+i)^{2}}=\frac{225}{(1+i)^{2}} +\frac{225}{(1+i)^{4}})$ , then we have $225(1+i)^{2}+225=169(1+i)^{3}+169(1+i)^{2}$ .