Alex has obtained $1,000 and he takes it to the bank where the account is compounded monthly at 5%. He will leave it for 10 years. How much money will he have after 10 years?

Answers

Answer 1
Answer: A = P(1 + R/N) to the power of nt
where A = amount
P=principal 
R= rate
N= number of times per year interest is compounded
and nt = time in a year
1000( 1 + 5%/12) to the power of 10 = $1042.46 
Answer 2
Answer:

Answer:

$1,647,01

Step-by-step explanation:


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What's the difference of 3/4 and 1/28

Answers

Find the  LCD 4 and 28 :

Factor each denominator into its primes :

4 = 2²
28 = 2² * 7

Find the least common denominator 2² * 7 = 28

LCD = 28

(3)/(4) - (1)/(28)

Adjust fractions based on the LCD :

(3*7)/(28) - (1)/(28)

(3*7-1)/(28)

= (20)/(28)

Cancel common  factor 4 :

(20/4)/(28/4)

= (5)/(7)

hope this helps!


What is half of seven because I working on area and circumference

Answers

7/2 = 3 1/2 = 3.5, so 3.5 is half of 7.
3 1/2 because all you have to do is divide 7 by 2. the 7 goes in the inside the 2 goes on the outside

In how many years will the interest on £100 at 6% amount to £12?

Answers

Given:
Principal = £100
Interest rate = 6%
Interest = 
£12

Simple Interest is computed by multiplying the principal by its interest rate and term

Interest = Principal * rate * term
12 = 100 * 0.06 * term
12 = 6 * term
12/6 = term
2 = term

It will take 2 years for 
£100 to earn £12 at 6%
6% is 6 for every hundred. Because we have 100, that means that it the interest will be 6 more each year. 12/6 = 2, so 2 years.
NOTE:that is only simple interest. Compound interest is different. Compound interest is when you earn interest on your interest, so after 1 year you would have 106, and then you would get 6% of that 106.

What is the answer to the equation -84+15r=3r

Answers

Answer:

r=7

Step-by-step explanation:

-84+15r=3r

Subtract 15r from each side

-84+15r-15r=3r-15r

-84 = -12r

Divide each side by -12

-84/-12 = -12r/-12

7 = r

Answer:

r = 7

Step-by-step explanation:

So the reason that the answer is 7 is because in this equation you have to get all the r's on one side and the other numbers on the other side of the equal sign.

-84 + 15r = 3r

-84 = -12r

you then divide both sides of the equal sign by -12 in order to get rid of the -12 next to the r variable and when you divide the negative 84 by a negative 12 you will get a positive 7 giving you the answer r = 7

A television cost $375 it is on sale for 25% off and there a 6.5% sales tax

Answers

25% of $375 is:
$375* (25/100)= $93.75.

The cost of the television after sale off and before the sales tax is:
$375- $93.75= $281.25

The sales tax is:
$281.25* (6.5/100)= $18.28

The price of the television including everything is:
$281.25+ $18.28= $299.53

Hope this helps~

A television costs 375 dollars.It is on sale for 25% and there’s a sales tax of 6.5%Let’s calculate to get the answer.Original Price = 375 dollarsLet’s add the 6.5% sales tax=> 6.5% = 6.5 / 100 = 0.065=> 375 * 0.065 = 24.375=> 375 + 27.375 = 399.375Let’s subtract the 25% discount=> 25% = 25 / 100 = .25=> 399.375 * .25 = 99.84375=> 399.375 - 99.84375 = 299.53.Thus the new price of the television is 299.53 with the sales tax and discount.

Solve this system by using substitution:
 
y=7x-10
y=-3

Answers

lets use substitution
y=7x-10
y=-3

so 
-3=7x-10
7=7x
1=x

now lets check
y=7(1)-10
y=-3

therefore both equations have the same value