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
Alik [6]
2 years ago
7

You have $1000 you want to save, but you don’t want to put it into a savings account the pays only 0.5% per year. Instead, you h

ave decided to put your money into a CD that pays simple interest for three months. At the end of the three months (1/4 of a year) you get your money and interest back. The interest rate you were able to get was 3% per year. What is the total amount of interest (ie. extra money you get) that was earned on this CD?
Mathematics
1 answer:
just olya [345]2 years ago
5 0

Answer:

$30

Step-by-step explanation:

If the CD paid back 3% interest of the money you put in, all you have to find is what 3% of $1000 is.

3% = 0.03.

0.03 x 1000 is $30.

You earned $30 in interest.

You might be interested in
How are real numbers used to describe real world situations?
makkiz [27]
For example, money. If you are buying a shirt, that costs $5.49, and a pair of shoes that costs $16.99, then that would be a real world situation. You would have spent $22.48.
5 0
3 years ago
A bacteria culture starts with 12,000 bacteria and the number doubles every 50 minutes.
Vlada [557]

Answer:

a)  y=12000(2)^{\frac{t}{50}}

b)  Approx. 27,569 bacteria

c)  About 103 minutes

Step-by-step explanation:

a)

This will follow exponential modelling with form of equation shown below:

y=Ab^{\frac{t}{n}}

Where

A is the initial amount (here, 12000)

b is the growth factor (double, so growth factor is "2")

n is the number of minutes in which it doubles, so n = 50

Substituting, we get our formula:

y=Ab^{\frac{t}{n}}\\y=12000(2)^{\frac{t}{50}}

b)

To get number of bacteria after 1 hour, we have to plug in the time into "t" of the formula we wrote earlier.

Remember, t is in minutes, so

1 hour = 60 minutes

t = 60

Substituting, we get:

y=12000(2)^{\frac{t}{50}}\\y=12000(2)^{\frac{60}{50}}\\y=12000(2)^{\frac{6}{5}}\\y=27,568.76

The number of bacteria after 1 hour would approximate be <u>27,569 bacteria</u>

<u></u>

c)

To get TIME to go to 50,000 bacteria, we will substitute 50,000 into "y" of the equation and solve the equation using natural logarithms to get t. Shown below:

y=12000(2)^{\frac{t}{50}}\\50,000=12,000(2)^{\frac{t}{50}}\\4.17=2^{\frac{t}{50}}\\Ln(4.17)=Ln(2^{\frac{t}{50}})\\Ln(4.17)=\frac{t}{50}*Ln(2)\\\frac{t}{50}=\frac{Ln(4.17)}{Ln(2)}\\\frac{t}{50}=2.06\\t=103

After about 103 minutes, there will be 50,000 bacteria

4 0
3 years ago
PLEASE, I NEED HELP! I will not accept nonsense answers, but I will give the person a BRAINLIEST if you get it correct.
alex41 [277]

Answer:  The last choice is correct. Edna can score 5 times as many points in the next level as in the level she has reached

Step-by-step explanation:    chart of values  for y= 5^{x}  

x is the level   y, points possible)

x    y

1     5

2   25

3   125

4    625

5    3125

You can see the exponential pattern

For what it's worth, two views of the graph of the equation are attached

The point values are astronomical!

6 0
3 years ago
Can someone help me with this problem?
Lena [83]
The only answer that makes sense to me is B.
3 0
3 years ago
26. Find (g-|(2). Use f(x) = 2x – 1 and g(x) = x + 5.<br> a. 4<br> b. 2<br> c. 4.<br> d. 6
schepotkina [342]

Answer:

4dyhdhdjdjjddhjdjdhdudhf

5 0
3 years ago
Other questions:
  • What is 1/5m - 20 = to
    15·2 answers
  • Andrea totaled the distance she ran on Monday, Tuesday, and Wednesday. Her sum is 14.225. A 2-column table with 3 rows titled To
    16·2 answers
  • Can someone please help me with this question? Thanks if you do!
    14·2 answers
  • 25 points America explain
    11·1 answer
  • Parallelogram L M N O is shown. Angle L is (x + 40) degrees and angle O is (3 x) degrees. What is the measure of angle O in para
    15·1 answer
  • Find slope of a line (-3,5) and (7,-9)
    12·1 answer
  • -5 = 1 / 3 ( -1 - w )<br> plz help with step by step answer
    11·1 answer
  • #5 10 pounds of Cat Food A costs $6.50.
    7·1 answer
  • Sam has $14 more than taylor. All togther they have $82. How much does Sam and Talor have?​
    12·2 answers
  • The correlation between two scores X and Y equals 0.75. If both scores were converted to Z-scores, then the correlation between
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!