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NeX [460]
3 years ago
12

Jordan invested $800 in a savings account the interest rate is 6% per year find the simple interest earned in three years then f

ind the total of principal plus interest
Mathematics
2 answers:
allochka39001 [22]3 years ago
6 0
To find the total amount he get,we can first find the interest he would get per year:

$800×6%
=$800×0.06
=$48

In three years,the amount of interest he would get:
=$48×3
=$144

To find the total of principal and interest,we would add the interest he get in three years and the original amount he invested:

$144+$800
=$744

Hope it helps!
Olegator [25]3 years ago
5 0

Principal , P =$800

Rate , r = 6% = 0.06

Time , t = 3 years

Simple Interest = P*r*t = 800*0.06*3 = $144

Total Interest plus Principal = $800 + $144 = $944

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Find the equation of the plane that goes through three points:
frosja888 [35]

The equation of the plane that goes through these points is:

6x + 2y + z = 10.

<h3>How to find the equation of a plane given three points?</h3>

The equation of the plane is found replacing the points into the following equation:

ax + by + c = z.

For point A, we have that:

3b + c = 4.

For point B, we have that:

a + 2b + c = 0.

For point C, we have that:

-a + 6b + c = 4.

Hence the system is:

  • 3b + c = 4.
  • a + 2b + c = 0.
  • -a + 6b + c = 4.

From the first equation, we have that:

c = 4 - 3b.

Replacing in the second, we have that:

a + 2b + 4 - 3b = 0

a - b = -4.

Replacing in the third, we have that:

-a + 6b + 4 - 3b = 4.

-a + 3b = 0.

a = 3b.

We have that a - b = -4, hence:

3b - b = -4

2b = -4

b = -2.

a = 3b, hence a = -6.

c = 4 - 3b -> c = 10.

Hence the equation is:

ax + by + c = z.

z = -6x - 2y + 10

6x + 2y + z = 10.

More can be learned about the equation of a plane at brainly.com/question/13854649

#SPJ1

7 0
11 months ago
Kelly bought a new car for $20,000. The car depreciates at a rate of 10% per year.
Vlad1618 [11]

Answer:

Use the formula.

P=P'(1-R/100)^T

where,

P=final rate

P'=initial rate

R=Rate of Depreciation

T=Time.

3 0
3 years ago
In the year 2005, there were 100 rabbits in a particular region. Since then, the population has increased by 3.4% per year. Writ
Andreas93 [3]

Answer:

Step-by-step explanation:

Your answer

Ok, lets do it systematically.

2005– 100 rabbits

3.4 % per year increasement.

So every year it increase 0.034 *100 = 3.4 per year

Total 2025-2005= 20 years

So expression is : 0.034*100*year(20)

Answer is : 3.4*20 = 68. So, in 2025, total rabbits will be 168

Mark it as Brainlist answer. Follow me.

3 0
3 years ago
私はこれをGoogle翻訳を使って書き留めています。地面からうんちをすくい取ります。今やれ!
vodomira [7]

Answer:

yessssss

Step-by-step explanation:

thanks ;p;p;

6 0
3 years ago
Explain your work please
Vlad1618 [11]
30 = 60% of x
x being our variable, we need to figure out what x equals. Use the formula I put in the attachment. Multiply 30 by 60, and then divide the product by 100. That will give you the answer :)

7 0
3 years ago
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