All categories

3 years ago

you put $400 in an account. the account earns $18 simple intrest in 9 months. what is the anual interest rate?

Mathematics

2 answers:

mojhsa [17]3 years ago

8 0

Use the formula,

I = Prt

P = Principal amount = 400

I = interest = 18

r = annual rate

t = time in years = 9/12 = 3/4

so,

18 = 400*r*3/4

r = 0.06

so the annual interest rate is 0.06 or 6%

meriva3 years ago

7 0

Answer:

Step-by-step explanation:

I = Prt, so r = I / (Pt)

t = 9 months / 12 months = 0.75

r = $18 / ($400 * 0.75) = 0.06, or 6%

You might be interested in

Y=40+90x what is the meaning

Dafna1 [17]

Y = total cost
40 = The one time fee
90 = the service charge per month
x = number of months

4 0

3 years ago

The rental fee for a bike is $10 plus $3 for each hour the bike is used. How much will it cost

ikadub [295]

Y=3x+10
10 represents the fee
X= amount of hours
3 is the cost per hour.

4 0

2 years ago

Rewrite the following expression using base only once 7^6 x 7^8

chubhunter [2.5K]

Answer:

$7^{14}$

Step-by-step explanation:

Using the rule of exponents

$a^{m}$ × $a^{n}$ = $a^{(m+n)}$ , then

$7^{6}$ × $7^{8}$ = $7^{(6+8)}$ = $7^{14}$

3 0

2 years ago

Describe how the placement of the decimal point changes when you multiply a number by the power of ten. How is this the same and

Solnce55 [7]

Answer: the answer to your question is

Recall that when you multiply a decimal by a power of ten (10, 100, 1,000, etc), the placement of the decimal point in the product will move to the right according to the number of zeros in the power of ten. For instance, 4.12 · 10 = 41.2.

hope this helps for what you needed have a nice day! :)

3 0

3 years ago

Plzzzzz help asap if i don't get it in like 10 mins the whole thing will restart

Sergio [31]

Answer:

I am going to assume the 25 is 25%

Step-by-step explanation:

25/100 *212

1/4*212=53

53 acres of land is carrots

4 0

3 years ago