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devlian [24]
3 years ago
11

Sophie invested $420 in an account paying an interest rate of 1.6% compounded monthly. Assuming no deposits or withdrawals are m

ade, how long would it take, to the nearest year, for the value of the account to reach $570?
Mathematics
1 answer:
KiRa [710]3 years ago
8 0

Answer: 19

Step-by-step explanation:  

You might be interested in
How you would convert the repeating, nonterminating decimal to a fraction? Please EXPLAIN the process as you solve the problem,
zmey [24]
Okay, here we go.

With simpler decimals, this is a bit easier so I'll explain that first to make sure you get the basic idea. 

Let's say you had a decimal for .75 and wanted to create the fraction mathematically. To do this you would:

First divide the decimal by 1 so .75/1
Then multiply be a multiple of 10 that eliminates the decimal so in this case 100
so you now have 75/100
When you simplify that fraction by dividing by 25, you of course get 3/4

Now on to your more complicated question:

Let's assign a variable to your repeating decimal so:

x=.1515151515

Now, let's identify the repeating digits, here they are .15

Move one set of the repeating digits in front of the decimal  so now we get:

100x=15.1515151515

Now you have two equations, they are:

x=.1515151515
100x=15.1515151515

Combine the equations into one equation:

100x-x=15.1515151515-.1515151515
99x=15
15/99
simplify and you get 5/33





6 0
3 years ago
11. In your own words, describe how to view the
astraxan [27]
Do they want me describe the step by step process or no???
5 0
3 years ago
Sally Can Type 1 1/2 Pages Of Paper In 2/3 Hour,.Mike Types 1/2 Page In 1/6 Hour.What Each Students Rate Per Hour? Who Types Mos
Thepotemich [5.8K]
Sally: 
First you would divided 1.5 with two-thirds
<u>1.5 pages</u>=2.249(9's are repeating<u>
</u>2/3 

Mike:             <u>    </u>
<u>1/2 pages</u>=2.994 (9's are also repeating not 4) 
1/6 

Basically, Mike is typing the most pages per hour.

<em>I hope this help you understand :D</em>

3 0
3 years ago
Mario says that the expression 4+3n² has four terms: 4, 3, n, and 2. Is he correct? explain.
stich3 [128]

Mario says that the expression 4+3n^2 has four terms: 4, 3, n, and 2. Mario is incorrect

<em><u>Solution:</u></em>

Given that the expression is:

4+3n^2

Given that, Mario says that the above expression has four terms

But Mraio is incorrect

Because the given expression has two terms only

4 is one of the term

3n^2 is another term

So there are totally 2 terms only

A term can be a signed number, a variable, or a constant multiplied by a variable or variables

Here 3 is a constant multiplied by n^2

So, 3n^2 is one term

Each term in an algebraic expression is separated by a + sign or - sign

Thus there are two terms in mario expression

8 0
3 years ago
Find the price of each product after a discount is applied​
Lisa [10]

Answer:

The rate is usually given as a percent.

To find the discount, multiply the rate by the original price.

To find the sale price, subtract the discount from original price.

so like

19.99

x.20

3.998 - 19.99=

15.99

Step-by-step explanation:

5 0
3 years ago
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