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
Ulleksa [173]
2 years ago
7

Money in a bank triples every 10 years. If $100 is deposited today, what will its value be after 40 years? PLEASE SHOW ME STEP B

Y STEP AND I WILL GIVE YOU BRAINLIEST!!
a) $400 b) $1200 c) $6400 d) $8100 e) $24,300
Mathematics
1 answer:
LenKa [72]2 years ago
7 0

Answer:

d) $8,100

Step-by-step explanation:

Given information:

  • Money triples every 10 years
  • Initial deposit = $100
  • Number of years invested = 40 years

If the money triples (multiplies by 3) every 10 years,
then in 40 years time it will triple <u>4 times</u>, as 40 ÷ 10 = 4

⇒ Account balance after 40 years = $100 × 3 × 3 × 3 × 3

                                                         = $100 × 3⁴

                                                         = $8,100

<u>Proof</u>

In 10 years time the balance of the account will be:

$100 x 3 = $300

In another 10 years time, the balance of the account will be:

$300 x 3 = $900

In another 10 years time, the balance of the account will be:

$900 x 3 = $2700

In another 10 years time, the balance of the account will be:

$2700 x 3 = $8100

You might be interested in
Let ƒ(x) = x + 1 and g(x) = 5x. Evaluate the composition (ƒ ∘ g)(–1). Question 2 options: A) (ƒ ∘ g)(–1) = 6 B) (ƒ ∘ g)(–1) = –4
Papessa [141]

Answer:

answer B

Step-by-step explanation:

hello,

f(x)=x+1\\g(x)=5x \ \ so\\(fog)(-1)=f(g(-1))=f(-5)=-5+1=-4

so the winner is the answer B

hope this helps

5 0
3 years ago
What is the depth of the Indian Ocean rounded to the nearest thousand
gogolik [260]
Hey There!

The depth of the Indian Ocean rounded to the nearest thousand is 13,000.
7 0
3 years ago
The annual salaries of all employees at a financial company are normally distributed with a mean of $34,000 and a standard devia
IRISSAK [1]
z=\frac{X-\mu}{\sigma}=\frac{54000-34000}{4000}=5
5 0
3 years ago
Read 2 more answers
Sam has nine yellow pencils in his desk 3/4 of his pencils are yellow how many pencils does Sam have in his desk
mrs_skeptik [129]

Answer:

12

Step-by-step explanation:

(# of pencils)x(3/4)=9

(# of pencils)x(0.75)=9

(# of pencils)=9/(0.75)=12

3 0
3 years ago
36 boys complete a school task in 4 hours. How many boys would be required to complete the same task in 2¼ hours?​
vova2212 [387]

Answer:

20

Step-by-step explanation:

If 36 boys can conplete a task in 4 hours, then 19.35 boys could do it in 2 and a fourth hours.

You can set up an equation

A fourth of an hour is 15 minutes, so,

36 is to 4 as x is to 2.15, or,

36=4 as X=2.15

Multiply 2.15 by 36 (77.4)

77.4 divided by 4= 19.35.

Of course, you cannot have 19.35 boys, so there must be 20.

Hope this helps!

8 0
3 years ago
Other questions:
  • A statistics class at wilmington college has 25 students of which 15 are math majors and 10 are business majors. the professor r
    6·1 answer
  • What is the distance between (-5, -6) and (-3. -8)?​
    11·2 answers
  • Maria and two friends drove 87.5 miles and averaged 35 miles per gallon. They drove at an average speed of 50 miles per hour, an
    6·1 answer
  • Simplify 7(x - 1) - 2(x + 1) + 3(x - 4)<br><br> 8x - 21<br> 8x - 4<br> 8x + 21
    14·1 answer
  • The second side of a triangular deck is 6 feet longer than the shortest side and a third side that is 6 feet shorter than twice
    10·1 answer
  • The equation for the graph obtained when the graph of y= 1/x is compressed vertically by a factor of 0.25, translated 4 units ri
    9·1 answer
  • How do algebra tiles help you solve equations?
    6·1 answer
  • Rewrite this equation in Slope Intercept form and
    11·2 answers
  • I’m a little lost on this
    10·1 answer
  • Lisa flipped a coin 50 times and got a head 20 times. What was the experimental probability of flipping a heads? what is the the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!