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
Aleksandr [31]
2 years ago
8

Becky tells her friend about the Rule of 72 and her friend immediately

Mathematics
1 answer:
yaroslaw [1]2 years ago
3 0

Answer:

  a. the investment earns 4%

  b. yes

Step-by-step explanation:

The "rule of 72" says that an investment earning compound interest at x% will double in value after 72/x years. That is, ...

  f(x) = 72/x

__

<h3>a.</h3>

We interpret f(4) to mean Becky's friend is interested in the doubling time for an investment that earns 4% interest.

__

<h3>b.</h3>

Using the above formula, ...

  f(4) = 72/4 = 18

The friend's math is correct.

You might be interested in
A recent survey shows that the average man will spend 141,288 hours sleeping, 85,725 hours working, 81,681 hours watching televi
Citrus2011 [14]

Answer:

to determine this you would have to find out how many hours the man lived and slept.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
PLZ HELP on THIS QUESTION
Greeley [361]
Its a rectangle cut the corners
8 0
4 years ago
Abigail made a quilt that has the area of 4,800 sq. inches. The length of the quilt is 1 1/3 times the width of the quilt. What
Aliun [14]
For this case we model the problem as a rectangle.
 The area of the rectangle is given by:
 A = (w) * (l)
 Where,
 w: width
 l: long
 Substituting values we have:
 4800 = (w) * ((1 1/3) * w)
 We rewrite:
 w ^ 2 = 4800 / (1 1/3)
 w ^ 2 = 3600
 w = root (3600)
 w = 60 in
 The long will be then:
 l = (1 1/3) * w
 l = (1 1/3) * (60)
 l = 80 in
 Answer:
 
the dimensions of the quilt are:
 
w = 60 in
 l = 80 in
8 0
3 years ago
What Is 71898-92374?Will Be Brainlist
malfutka [58]

Answer:

-20,476

Step-by-step explanation:

5 0
3 years ago
HELP HELP ASAP!!!!!!!!!!!!!!!!!!!!
Marat540 [252]

Answer:

D

Step-by-step explanation:

u make subject of fomula x then divide by

7 0
3 years ago
Other questions:
  • Show me how to multiply .54 times .5
    13·1 answer
  • The table of values represents the function g(x) and the graph shows the function f(x).
    13·1 answer
  • Can any one solve this
    10·1 answer
  • wendy already spent $10 on a necklace, and each additional charm is priced at $2 each. write a function that shows the relations
    9·1 answer
  • Identify an equation in point-slope form for the line perpendicular to
    15·1 answer
  • 4 5/2 - 4 3/2 <br><br> ANSWER WITH EXPLANATION. BRAINLIST!!!!!
    14·1 answer
  • What is the missing term?
    9·2 answers
  • Mis. Jackson wants to rent a van for a week it will cost a weekly fee plus 0.20 per mile driven let m equal the number of miles
    13·1 answer
  • Evaluate 4g - 12 when g = 5.
    15·1 answer
  • PLEASE HELP 10 POINTS!!
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!