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marta [7]
3 years ago
8

Is 6.37492797 a rational number​

Mathematics
1 answer:
Aliun [14]3 years ago
7 0
No. An irration number is a fraction, thats a decimal
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a person deposits $5000 in an account paying 2.5%, compounded semiannually. Find the amount in the account after 4.5 years
castortr0y [4]

Answer:

$5,591.46

Step-by-step explanation:

Lets use the compound interest formula provided to solve this:

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

<em>P = initial balance</em>

<em>r = interest rate (decimal)</em>

<em>n = number of times compounded annually</em>

<em>t = time</em>

<em />

First, change 2.5% into a decimal:

2.5% -> \frac{2.5}{100} -> 0.025

Since the interest is compounded semiannually, we will use 2 for n. Lets plug in the values now:

A=5,000(1+\frac{0.025}{2})^{2(4.5)}

A=5,591.46

The amount in the account after 4.5 years is $5,591.46

3 0
3 years ago
Create an equation with one solution of x = −4.
katen-ka-za [31]

Answer:

What is missing is -5x - 20

Step-by-step explanation:

To find this, simply solve for the parenthesis as if it were a variable of its own. This will allow you to see exactly what is missing.

8x - (x - 20) = 2x - (_______)

8x - x + 20 = 2x - (_______)

7x + 20 = 2x - (_______)

5x + 20 = - (_______)

-5x - 20 = (_______)

So the answer for the parenthesis is -5x - 20

3 0
4 years ago
Margo spends 0.25 of her paycheck on a new dress, One-eighthof her paycheck on shoes, and $24 on a birthday present. If she spen
Naily [24]

Answer:

96

Step-by-step explanation:

.25x + .125x + 24 = 60

.25x + .125x = .375x

.375x + 24 = 60

60 - 24 = 36

.375x = 36

36/ .375

x = 96

7 0
4 years ago
You spend $40 on $5 pounds of concrete.what is the unit rate in dollars per pound
kifflom [539]

Answer:

$8/pound

Step-by-step explanation:

$40 ÷ 5 lbs = 8$ per pound

6 0
3 years ago
Read 2 more answers
Gerald bought a home for $300,000. His largest up–front cost is 10 percent, or $30,000. What is this cost called?
tankabanditka [31]
It is called 'down payment'.

Hope this helps! (Please rate) :)
3 0
3 years ago
Read 2 more answers
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