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
Gnesinka [82]
3 years ago
14

6. You want to save $1,000,000 in 40 years at a 3.5% interest rate. What is the principal (initial amount) you need to invest? R

ound to the nearest hundredth.
7. Iodine-123 (used in thyroid scans) has a half-life of 13 hours. Find k and write an equation to model this decay. Round k to the nearest thousandth.
8. Use the above equation to determine when 1% of the Iodine-123 remains in your system. Round to the nearest tenth. PLEASE HELP AND Use Growth Equation A = aekt or Decay Equation A = ae−kt for #5 - 8. Label all answers with appropriate units. thank you
Mathematics
1 answer:
labwork [276]3 years ago
3 0

Answer:

When you deposit money in a bank, the bank usually pays you for the use of your money. When you take out a loan from a bank, you have to pay the bank for the use of their money. In both cases, the money paid is called the interest. It is usually expressed as a percent. Here we shall look at a formula for simple interest.

You might be interested in
Kaylee and Olivia go to the movie theater and purchase refreshments for their friends.
KatRina [158]

The price of one bag of popcorn is $3.75

Step-by-step explanation:

Let,

x represent the cost of a bag of popcorn

y represent the cost of a drink.

According to given statement;

4x+12y=30      Eqn 1

x+6y=11.25      Eqn 2

Multplying Eqn 2 by 2

2(x+6y=11.25)\\2x+12y=22.50\ \ \ Eqn\ 3

Subtracting Eqn 3 from Eqn 1

(4x+12y)-(2x+12y)=30-22.50\\4x+12y-2x-12y=7.50\\2x=7.50

Dividing both sides by 2

\frac{2x}{2}=\frac{7.50}{2}\\x=3.75

4x+12y=30 and x+6y=11.25 can be used to find the price of one bag of popcorn and the price of one drink.

The price of one bag of popcorn is $3.75

Keywords: linear equation, elimination method

Learn more about elimination method at:

  • brainly.com/question/11821063
  • brainly.com/question/11871074

#LearnwithBrainly

3 0
3 years ago
What is 9/4 minus 4/3
ahrayia [7]

Answer:

Step-by-step explanation:27/12 - 16/12 = 11/12

4 0
3 years ago
Read 2 more answers
Nick goes to the store and buys 22 notebooks for $1.50 each. Then he buys 8 pens for $0.55 each. How much money did he spend in
rosijanka [135]

Answer:

$33 for the notebooks and $4.40 for the pens

Step-by-step explanation:

if u would multiply 33 by 1.50 you would get $33

if u would multiply 8 by 0.55 you would get $4.40

8 0
3 years ago
Please help with this question i will mark you brainliest!
adell [148]

9514 1404 393

Answer:

  equation: y = 4x

  graph is attached

Step-by-step explanation:

Let y represent the cost of the peaches in dollars. Let x represent their weight in pounds. Then the relation between the two variables is ...

  cost = (cost per pound) × (pounds)

  y = 4x

__

This graphs as a line through the origin with a slope of 4. In the attached, the x- and y-axes have different scales so more of the graph can be seen.

8 0
3 years ago
A circle has a diameter of 41 centimeters. Which equation can be used to find the radius of this circle? r=41π r=2(41) r=412 r=4
irinina [24]

Answer:

r=41/2

Step-by-step explanation:

You have to divide the diameter,  41, by 2 because the radius of the circle is half of the diameter. So, the answer would be 20.5

8 0
2 years ago
Read 2 more answers
Other questions:
  • The __________ of a circle is the part of a circle bounded by two radii and an arc. circumference interior angle sector
    15·2 answers
  • The median and mean<br> PLZ HELP
    11·1 answer
  • Which scenario could NOT be described by the following graph?
    6·2 answers
  • What does W = too please help
    13·2 answers
  • What is -1 1/4 + 1/2
    14·2 answers
  • Bruce weighs 12 pounds less than three times what Dylan weighs. Write an expression for Bruce's weight in terms of Dylan's weigh
    9·1 answer
  • What is the equation of a vertical line that passes through (-3,-2)
    11·1 answer
  • An anthropologist wishes to estimate the average height of men for a certain race of people. If the population standard deviatio
    11·1 answer
  • 23,465 Round to the nearest ten
    12·2 answers
  • Convert 3 m 40 cm to metre​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!