Find the measure of c. (1 27 O A. 31.6 B. 27 C. 63 D. 126

If the principal is $300 rate 3% time 4 years then what is the interest earned and the new balance

Tomtit [17]

Answer:

a) Interest earned = $36

New Balance = $336

b) Interest rate = 0.05 or 5%

New Balance = $517.5

c) time t = 5

New Balance = $612.5

d) Principal Amount = $675

New Balance = $783

Step-by-step explanation:

We are given:

a) Principal (P) = $300

Rate (r) = 3% or 0.03

Time (t)= 4 years

Interest earned = ?

The formula used is: $Simple \ Interest (I)= P\times r\times t$

Putting values and finding interest

$Simple \ Interest (I)= P\times r\times t\\Simple \ Interest (I)= 300\times 0.03\times 4\\Simple \ Interest (I)= 36$

So, Interest earned = $36

New Balance = Principal + Interest = 300+36 = $336

b) a) Principal (P) = $300

Rate (r) = ?

Time (t)= 3 years

Interest earned = 67.50

The formula used is: $Simple \ Interest (I)= P\times r\times t$

Putting values and finding rate

$Simple \ Interest (I)= P\times r\times t\\67.50= 450\times r\times 3\\67.50=1350\times r\\r=\frac{67.50}{1350}\\r=0.05 \ or \ 5\%$

So, Interest rate = 0.05 or 5%

New Balance = Principal + Interest = 450+67.50 = $517.5

c) Principal (P) = $500

Rate (r) = 4.5% or 0.045

Time (t)= ?

Interest earned = $112.50

The formula used is: $Simple \ Interest (I)= P\times r\times t$

Putting values and finding time

$Simple \ Interest (I)= P\times r\times t\\112.50= 500\times 0.045\times t\\112.50=22.5 \times t\\t=\frac{112.50}{22.5}\\t=5$

So, time t = 5

New Balance = Principal + Interest = 500+112.50 = $612.5

d) Principal (P) = ?

Rate (r) = 8% or 0.08

Time (t)= 2 years

Interest earned = 108.00

The formula used is: $Simple \ Interest (I)= P\times r\times t$

Putting values and finding Principal

$Simple \ Interest (I)= P\times r\times t\\108=P\times 0.08 \times 2\\108=P\times 0.16\\P=\frac{108}{0.16}\\P=675$

So, Principal Amount = $675

New Balance = Principal + Interest = 675+108 = $783

8 0

2 years ago

What is the Smallest numbers : p = x^2 + 2x +2 / x+1 (x>-1) t= 1/x + 4/1-x (0

OverLord2011 [107]

Answer:

I exactly don't know the answer

5 0

1 year ago

Two trains, Train A and Train B weigh a total of 479 tons. Train A is heavier than Train B. The difference of their weights is

Marysya12 [62]

Answer:

A= 429

B= 50

Explanation:

A+B= 479 (take away)

A-B= 379

A-A+B+B= 479-379 (simplify)

2B= 100

I think you know how to do it now..

B=50

A=50+379 ---> 429

This is the substitution method, there are other ways of doing it- and I tried to make this simple. Hope this helped!

3 0

2 years ago

What’s 6 x 67,799,000

nataly862011 [7]

Answer:

406794000

Step-by-step explanation:

3 0

2 years ago

1/6 of an advertising catalog page is dedicated for a drawing, 5/18 for an advertisement and 1/9 for another advertisement. The

svlad2 [7]

Answer:

No

Step-by-step explanation:

In other words, does the sum of 5/18, 1/9 and 1/6 exceed, equal or come out to less than 1/2?

The LCD of 5/18, 1/9 and 1/6 is 18. Thus, these three fractions are equal to

5/18, 2/9 and 3/18, and their sum is 10/18, or 5/9. Thus, the part of the page covered with text is 1 less 5/9, or 4/9. No, the text does not cover more than half of the page.

7 0

2 years ago