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
icang [17]
3 years ago
13

If I want to earn $100 on a 3-month CD that pays 4% annual simple interest, how much must I invest?

Mathematics
1 answer:
konstantin123 [22]3 years ago
7 0

keeping in mind that 3 months is not even a year, but since there are 12 months in a year, 3 months is really 3/12 years, therefore,


\bf ~~~~~~ \textit{Simple Interest Earned} \\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\dotfill&100\\ P=\textit{original amount deposited}\\ r=rate\to 4\%\to \frac{4}{100}\dotfill &0.04\\ t=years\to \frac{3}{12}\dotfill &\frac{1}{4} \end{cases} \\\\\\ 100=P\left( 0.04\cdot \frac{1}{4} \right)\implies 100=P(0.01)\implies \cfrac{100}{0.01}=P\implies 10000=P

You might be interested in
Use distributive law evaluate
Cerrena [4.2K]

Answer:

The distributive property allows you multiply a sum in parenthesis by multiplying each addend separately, then add the products.

Step-by-step explanation:

How to use the distributive law example.

2(x+4) = 16

To use the distributive law in this example multiply 3 by all terms in the parenthesis. Multiply 2 and x, then 2 and 4 to open the parenthesis.

2x+8=16

That is how you use the distributive law.

To continue solving, subtract 8 from both sides.

2x+8-8=16-8

2x=8

Divide 2 from both sides.

2x/2=8/2

x=4

Hope this helps!

If not, I am sorry.

6 0
2 years ago
Does anyone know this algebra question? 15 points
Vesnalui [34]
The answer is 669
5^4-2(5)^3+5(5)^2+-7(5)+4
625-250+125-35+4
hope this helps!
8 0
3 years ago
Read 2 more answers
Which presents the value of c
Tems11 [23]

Answer:

It's choice 2.  c = 3 sin 45 / sin 40.

Step by-step explanation:

m< A = 180 - 45-95

= 180 - 140

= 40 degrees.

So by the Sine Rule:

c / sin 45 = 3 / sin A

Cross multiply:

c sin A = 3 sin 45

c =  3 sin 45 / sin 40.

8 0
3 years ago
Read 2 more answers
Please solve the eqution<br> Cos4x + cos2x - 2 =0
horrorfan [7]

cos4x = cos2x

We know that:

cos2x = 1-2cos^2 x

==> cos4x = 1-2cos^2 (2x)

Now substitute:

==> 1-2cos^2 (2x) = cos2x

==> 2cos^2 (2x) + cos2x - 1 = 0

Now factor:

==> (2cos2x -1)(cos2x + 1) = 0

==> 2cos2x -1 = 0 ==> cos2x =1/2 ==> 2x= pi/3

==> x1= pi/6 , 7pi/6

==> x1= pi/6 + 2npi

==> x2= 7pi/6 + 2npi

==> cos2x = -1 ==> 2x= pi ==> x3 = pi/2 + 2npi.

<span>==> x= { pi/6+2npi, 7pi/6+2npi, pi/2+2npi}</span>

6 0
3 years ago
What is the probability of pulling out a diamond card out of a standard deck and rolling a 5?
Sliva [168]

Answer:

1/24

Step-by-step explanation:

The probability of drawing a diamond is 1/4 and the prob. of rolling a 5 is 1/6. Multiply the two together

3 0
2 years ago
Read 2 more answers
Other questions:
  • Choose the best definition for the following term: substitution
    15·1 answer
  • Name the intesection of lines r and s?
    12·2 answers
  • PLEASE PLEASE SOMEONE HELP!!!!!!!
    9·1 answer
  • Which expression makes the equation true for all values of x? 16x-16=4(?)
    15·2 answers
  • The time taken to prepare the envelopes to mail a weekly report to all executives in a company has a normal distribution, with a
    5·1 answer
  • What is the domain of the graphed function?
    13·1 answer
  • Help I’m doing a test.... what is 3(2x-9) =
    8·2 answers
  • Need help!!! Worth 13 points!
    14·1 answer
  • Can someone plz help meeee!! :(
    5·2 answers
  • Can anyone prove this?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!