1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
KonstantinChe [14]
3 years ago
13

7. Riley invested $1,000 in savings

Mathematics
1 answer:
Aleksandr [31]3 years ago
8 0

Answer:

Riley will earn interest of $1706.86 in 15 years. But when the same problem solved for interest compounded annually we get,

c)1663.90

The options does not match with answer

Step-by-step explanation:

Given

principal amount P = $ 1000

rate of interest r = 6.75 % = 6.75/100 =0.0675

time t = 15

compounded semi annually, hence

no. of times interest is compounded, n = 2

We know that the formula for deriving final amount (A) is

A = P(1+\frac{r}{n} )^{nt}

Substituting the known values , we get

A = 1000 x (1 + \frac{0.0675}{2} )^{2 * 15}

   = $2706.86

Hence the interest earned = A - P

                                             = $2706.86 -  $ 1000

                                             = $1706.86

The answer is  $1706.86

But when the same problem solved for interest compounded annually we get, n=1 and so

A = 1000 x  (1 + 0.0675)^{15}

   = 2663.90

Hence interest earned = $2663.90 -  $ 1000

                                       = 1663.90

You might be interested in
If A = (-2, -4) and B = (-8, 4), what is the length of AB?
svetoff [14.1K]

Answer: OPTION D

Step-by-step explanation:

To solve this exercise you must use the formula for calculate the distance  between two points, which is shown below:

d_{(A,B)}=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Now, you must substitute the points given in the problem into the formula:

A(-2,-4)

B(-8,4)

d_{(A,B)}=\sqrt{(-8-(-2))^2+(4-(-4))^2}

Then, the result is:

d_{(A,B)}=10units

5 0
4 years ago
Read 2 more answers
In a two week period it was sunny 3/7 of the days. how many days were sunny?
Dafna11 [192]
Assuming two weeks is 14 days
3/7*14=6
therefore it was sunny for 6 days
6 0
4 years ago
Read 2 more answers
A comic-strip writer churns out different numbers of comic strips each day. The writer logged the number of comic strips he wrot
VLD [36.1K]

Answer:

Step-by-step explanation:

Given that a comic-strip writer churns out different numbers of comic strips each day. The writer logged the number of comic strips he wrote each day for 16 days and sorted the data in ascending order to create this data set.

1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 5, 6, 8

Mean = 3.77 and median =3.5

When mean > median, hence positively skewed.

skewness = 0.74

If 5 and 7 are added the data set in ascending order is

1, 1, 2, 2, 2, 3, 3, 3, 3, 4, 4, 4, 5, 5,5. 6, 7,8

Mean = 3.7778 and median = 3.5

Difference of mean =0.0078 and

difference of median = 0

3 0
3 years ago
24. Rectangle A is 16 feet wide and is 8 feet longer than Rectangle B which is 14 feet wide.
Galina-37 [17]

Answer:

The Area of rectangle A is  576 feet²  .

Step-by-step explanation:

Given as :

The width of rectangle A = 16 feet

The Length of rectangle A = 8 feet + The length of rectangle B

The width of rectangle B = 14 feet

Let The length of rectangle B = L feet

So, The Length of rectangle A = 8 feet + L feet

The perimeter of rectangle A + The perimeter of rectangle B = 156 feet

So, 2 × ( Length A + width A ) +  2 × ( Length B + width B ) = 156 feet

Or,  2 × ( 8 + L + 16 ) +  2 × ( L + 14 ) = 156 feet

Or,  2 ×( 24 + L ) +  2 × ( L + 14 ) = 156 feet

Or, 48 + 2 L + 2 L + 28 = 156

Or, 76 L + 4 L = 156

So, 4 L = 156 - 76

Or, 4 L = 80

∴  L = \frac{80}{4} = 20 feet

So , The Length of rectangle A = 8 feet + 28 feet = 36 feet

And The width of rectangle A = 16 feet

So, Area of rectangle A = Length of rectangle A × width of rectangle A

I.e  Area of rectangle A = 36 × 16 = 576 feet²

Hence The Area of rectangle A is  576 feet²  . Answer

4 0
3 years ago
When Jamel went to the store, he spent $7 on 2.5 pounds of hamburger meat. What are two different ways to express the rate in th
ratelena [41]

Answer:

a) 0.357 pounds of hamburger meat can be purchased by spending 1 dollar

b)  1 pound of hamburger meat costs 2.8 dollars

Step-by-step explanation:

Rate in this case can be defined in two ways

a) The maximum amount of hamburger meat that can be purchased by spending 1 dollar

\frac{2.5}{7} \\= 0.357 pounds of hamburger meat can be purchased by spending 1 dollar

b) The maximum cost of 1 pound of hamburger meat

\frac{7}{2.5} \\2.8 dollar

Thus, 1 pound of hamburger meat costs 2.8 dollars

8 0
3 years ago
Other questions:
  • BRAINLIEST FOR FIRST TO HELP +20 pts
    6·1 answer
  • Eleven hundredths in percent
    6·2 answers
  • Number 10 I need help
    9·1 answer
  • Find the volume of the cone. Use π = 3.14. Round to the nearest hundredth.
    14·1 answer
  • Can anyone help please?
    12·1 answer
  • AB is side of regular hexagon and AC
    11·1 answer
  • Factor 4x+16<br> HELP PLEASE
    12·2 answers
  • Estimate 26 to the nearest tenth. Then locate 26 on a number line.
    11·1 answer
  • Sandra arrived at school at 7:37 a.m. She left school at 4:32 p.m. How long did Sandra stay at school?​
    6·1 answer
  • Please answer I keep wasting my points and getting ignored
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!