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zmey [24]
2 years ago
5

$400 interest is earned on a principal of $2,000 at a simple interest rate of 5% interest per year. For how many years was the p

rincipal invested?
Mathematics
1 answer:
bogdanovich [222]2 years ago
4 0

Answer:

4 years

Step-by-step explanation:

Given data

Simple interest= $400

Principal= $2000

Rate= 5%

The simple interest formula is given as

SI=PRT/100

substitute and solve for T

400=2000*5*T/100

cross multiply

400*100= 10000*T

40000=10000T

T= 40000/10000

T= 4 years

Hence the time taken is 4 years

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How is this supposed to be solved, i don’t really understand.
dezoksy [38]

Answer:

$2561.99 a quarter

Step-by-step explanation:

Just add together what they pay every year, then multiply by 25.5% (because that's the quarterly premium.)

Annual cost = insurance + dental + vision

                    = 8900 + 772 + 375 = $10047 a year.

Quarterly cost = 25.5% of annual cost

   Whenever you see of, think of multiplication!

   25.5% = .255

Quarterly cost = .255 * 10047 = <u>$2561.99 a quarter</u>

5 0
3 years ago
Micheal is 5 years older than Rui Feng and Vishal is thrice as old as Micheal if Rui Feng is p years old, find i) Michael's pres
Kitty [74]

Answer:

Michael's present age = p + 5

Michael's present age = 3p + 15

Sum of there ages 6 year age = 5p + 38

Sum of there ages 3 year ago = 5p - 11

Step-by-step explanation:

Assume;

Age of Rui Feng = x

Age of Micheal = x + 5

Age if Vishal = 3[x+5]

Given:

Age of Rui Feng = P

Computation:

Michael's present age = Age of Rui Feng + 5

Michael's present age = p + 5

Vishal's present age = 3[p + 5]

Michael's present age = 3p + 15

Sum of there ages 6 year age = [p + 6] + [p + 5 + 6] + 3[p + 5] + 6

Sum of there ages 6 year age = 5p + 38

Sum of there ages 3 year ago = [p - 3] + [p + 5 - 3] + 3[p + 5] - 3

Sum of there ages 3 year ago = 5p - 11

8 0
2 years ago
FIRST ANSWER GETS A BRAINLEST The right rectangular prism is packed with unit cubes of the appropriate unit fraction edge length
-Dominant- [34]

Answer:

26  

2 /3  cm3

Step-by-step explanation:

V = (6

2

3

)(2)(2) = 26  

2

3

Can also be solved by counting the fractional cubes.

7 0
3 years ago
Read 2 more answers
Help on this one up above.
AleksandrR [38]

With all the stuff added together, the sum is 2.03 kg

7 0
3 years ago
Type the missing number to complete the porportion
Nataliya [291]
34 x 2 = 17 x 4

answer = 4
6 0
2 years ago
Read 2 more answers
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