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
trasher [3.6K]
2 years ago
15

Brian deposits $7000 into an account that pays simple interest at an annual rate of 3%. He does not make any more deposits. He m

akes no withdrawals until the end of 5 years when he withdraws all the money. Answer the following questions. If necessary, refer to the list of financial formulas. (a) How much total interest will Brian earn? $ (b) What will the total amount in the account be (including interest)?
Mathematics
1 answer:
Andre45 [30]2 years ago
4 0

Answer:

A)1050

B)8050

Step-by-step explanation:

to find interest we use the formula A= P(1+rt) where P is the initial investment, r is the rate percent, and t is the time interval

for this question we have A=7000(1+3(5)) which gives 8,050 dollars which is the answer to part B

for part A we simply subtract the answer from B from the initial investment so 8050 - 7000 = 1050 made from interest

You might be interested in
You accept a job as a marine biologist that pays a salary of $45,000 the first year. During the next 39 years, you receive a 5.5
melamori03 [73]
45000(1.055)^40=383980.89
7 0
3 years ago
What is the truth value of (~p V q) ^ r if p is true, q is false, and r is true?
disa [49]

Answer:

i dont know im only getting points for this so i dont

fail and my mother hate me more for having to F's and to C's she wants all A's  but pls dont get upset  at me for not answering this    pls it would be helpful

4 0
3 years ago
Colin gets £xx wages each week. After he pays his tax of £tt, he then pays his rent of £250. He shares what's left between himse
Levart [38]

9514 1404 393

Answer:

  (x -t -250)/2

Step-by-step explanation:

The amount left from x after paying t and 250 is ...

  x -t -250

If this is split into two equal parts, each share is ...

  share = (x -t -250)/2

5 0
3 years ago
A cup of coffee contains about 100 mg of caffeine. Caffeine is metabolized and leaves the body at a continuous rate of about 12%
Mamont248 [21]

Answer:

a. A = C_{0}(1-x)^t\\x: percentage\ of \ caffeine\ metabolized\\

b. \frac{dA}{dt}= -11.25 \frac{mg}{h}

Step-by-step explanation:

First, we need tot find a general expression for the amount of caffeine remaining in the body after certain time. As the problem states that every hour x percent of caffeine leaves the body, we must substract that percentage from the initial quantity of caffeine, by each hour passing. That expression would be:

A= C_{0}(1-x)^t\\t: time \ in \ hours\\x: percentage \ of \ caffeine\ metabolized\\

Then, to find the amount of caffeine metabolized per hour, we need to differentiate the previous equation. Following the differentiation rules we get:

\frac{dA}{dt} =C_{0}(1-x)^t \ln (1-x)\\\frac{dA}{dt} =100*0.88\ln(0.88)\\\frac{dA}{dt} =-11.25 \frac{mg}{h}

The rate is negative as it represents the amount of caffeine leaving the body at certain time.

3 0
3 years ago
What is the median of this set of data?
Vladimir [108]

Answer:

The median would be 103.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Estimate how many times larger 7 x 1010 is than 13 x 108.
    11·1 answer
  • A cell phone company has a monthly charge of 10 dollars for unlimited minutes and 15 cents for each text message. These charges
    14·1 answer
  • The Johnsons are expanding the family room. When the room is finished, it will be twice the original length and width. How many
    5·2 answers
  • A car traveled 462 miles per tankful of gasoline on the highway and 336 miles per tankful of gasoline in the city. If the car tr
    9·2 answers
  • The triangles below are similar because of the:
    15·1 answer
  • (6)
    5·1 answer
  • Geometry please help thanks
    9·1 answer
  • Suppose that the speeds of cars travelling on California freeways are normally distributed with a mean of miles/hour. The highwa
    6·1 answer
  • Select the correct answer.
    7·1 answer
  • The table gives the amount of money (in dollars) spent on football by a major university. Letting 2 represent the number of year
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!