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elena-14-01-66 [18.8K]
3 years ago
5

Diana invested $3000 in a saving account for 3 years. she earned $450 in interest over the time period. what interest rate did s

he earn? use the formula i=prt to find your answers, where i is the interest, p is the principal, r is the rate and t is the time.enter your solution in decimal form rounded to the nearest hundreds
Mathematics
2 answers:
Yanka [14]3 years ago
8 0

Answer:

The rate of percentage is 5.00% .

Step-by-step explanation:

Formula

Simple\ interest = \frac{Principle\times Rate\times Time}{100}

As given

Diana invested $3000 in a saving account for 3 years.

she earned $450 in interest over the time period.

Principle  = $3000

Simple interest = $450

Time = 3 year

450= \frac{3000\times Rate\times 3}{100}

\frac{450\times 100}{3000\times 3}= \frac{Rate}{100}

\frac{45000}{9000}= Rate

Rate = 5%

Therefore the rate of percentage is 5.00% .

Lelu [443]3 years ago
4 0
R=i/pt
R=450/3000*3
R=0.05*100=5%
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If John has pairs of red, orange, yellow, blue and green socks, how many can he wear them in over 5 days, repetition is allowed
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Answer:

Total ways = 5×5×5×5×5

Total ways = 5^5

Total ways = 3125

Therefore, the correct option is C) 5^5

Step-by-step explanation:

John has pairs of red, orange, yellow, blue and green socks.

Which means that John has 5 different colors pairs of socks.

We are asked to find out in how many ways can he wear them over 5 days.

1st Day:

On the first day John has 5 ways to choose from.

2nd Day:

On the second day John has 5×5 ways to choose from.

(Since repetition is allowed)

3rd Day:

On the third day John has 5×5×5 ways to choose from.

4th Day:

On the fourth day John has 5×5×5×5 ways to choose from.

5th Day:

On the fifth day John has 5×5×5×5×5 ways to choose from.

Total ways = 5×5×5×5×5

Total ways = 5^5

Total ways = 3125

Therefore, the correct option is C) 5^5

7 0
3 years ago
How much is the interest on my loan?
kirill [66]

Answer:  The interest is:  " $ 64 .00 " .

_____________

Step-by-step explanation:

_____________

Take note of the formula:

" Ⅰ = Prt " ;

→ that is:

_____________

→   " Ⅰ = P * r * t " ;

_____________

In which:  

_____________

 " Ⅰ = the interest " ;

 " P = the Principal amount of money " ;

 " r = rate " (expressed as the "decimal form" of the percentage) ;

 " t = time " (in years) ;

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We are given:  

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 P = $400 ;

 r = 0.08 ;  

{<u>Note of interest</u>:  That is " 8% " ; since "8 % "  = "(8/100)" ;

                                                                          = "(8 ÷ 100)"

                                                                          = " 0.08 ".}.

 t = 2 ; {that would represent:  " 2 (two) years".}.

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We are to solve for "Ⅰ" ; the amount of "Ⅰnterest" :

→ To solve for "Ⅰ " ; we plug in our given values; and calculate:

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  →  Ⅰ = P * r * t ;

        = 400 * 0.08 * 2 ;

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  →  Ⅰ = $ 64.00 .

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Hope this is helpful to you!

Best wishes!

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4 0
3 years ago
PLS HELP
uysha [10]

Answer:

The option which represents the inequality is option D ; stated as x ≥ 0

Step-by-step explanation:

The marked or dotted position is 0 ; which represents the position of x, when graphing inequality statements, if the point IS SHADED, then it means GREATER THAN EQUAL TO.

Option A is incorrect, the inequality sign is not the same as the direction of the arrow.

Option B, says LESS THAN EQUAL TO, instead of GREATER THAN EQUAL TO

Option C SAYS GREATER THAN instead of GREATER THAN EQUAL TO.

Therefore, Option D is the correct expression which means x is GREATER THAN EQUAL TO.

Learn more : brainly.com/question/24065770

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Answer:

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Step-by-step explanation:

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