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
Aleksandr [31]
4 years ago
9

A person saves €1 in the first month and decides to double the amount he saves the next month. He continues this pattern of savi

ng twice the amount he saved the previous month for 12 months how much will he save on the 12th month and how much will he have saved in total for the year ignoring any interest he received?
Mathematics
1 answer:
dsp734 years ago
8 0

Answer:

(a)€2048

(b)€4095

Step-by-step explanation:

So the amount of money we would save at nth month is

2^{n-1} where n = 1, 2, 3, 4, ...

At the 12th month, meaning n = 12, we would save

2^{12-1} = €2048 for that month

The total amount we would save in a year is

1 + 2 + 4 + 8 + 16 + ... + 2048

2^{n} - 1 = 2^{12} - 1 = €4095

You might be interested in
Scientific Notation, if you could help that would be wonderful!
Umnica [9.8K]

Answer:

1:D

2:A

3:C

4:E

5:B

Step-by-step explanation:

A negative exponent will be when you move the decimal point to the left. A positive exponent will be moving the decimal point to the right.

The number of the exponent is how many times you will move the decimal point.

8 0
3 years ago
Please help!!! ***This is multiple choice!
svet-max [94.6K]

Answer:

0.6

Step-by-step explanation:

A probability is the likelihood of an event occurring. A probability function is a function in which at any point, its probability value can be estimated. The integral of the probability function is always ≤ 1

To find the probability that x = 2 or 3, we simply add their respective individual probabilities, therefore:

P(X = 2 or 3) = P(X = 2) + P(X = 3) = P(2) + P(3) = 0.5 + 0.1 = 0.6.

P(X = 2 or 3) = 6

5 0
4 years ago
Equation that has a radicand ​
Elenna [48]

A variable with a fraction exponent can be rewritten using a radical.

The equations would be A. radical equation

8 0
4 years ago
Read 2 more answers
Use technology to solve for x. 3^x - 4= 6x - 7
Anuta_ua [19.1K]

Answer:

x=1,1

Step-by-step explanation:

3x^2 - 4= 6x - 7

For the given equation :

Making the coefficients of x to L.H.S

3x^2-6x-4+7 =0\\

3x^2-6x+3=0

Taking 3 as common from the above equation

x^2-2x+1=0        

Splitting the equation to make factors

x^2-x-x+1=0

Taking common from the equation:

x(x-1)-1(x-1)\\(x-1)(x-1)=0

Equating 'x' to zero

x=1,1

4 0
3 years ago
How can you quickly calculate 20 percent of any bill amount?
Tems11 [23]
First, convert the percent into a decimal. To do this, simply more the % sign two places to the left and make it into a decimal point.

20% = 0.20

Then we will let x be our bill amount.

Then multiply 0.20 and x together to get your answer.

So, 0.20 * x is your answer.
4 0
3 years ago
Read 2 more answers
Other questions:
  • (08.05)
    12·1 answer
  • Becky has been tracking the population of a town. The population was 5,340 last year and has been increasing by 1.75 times each
    5·1 answer
  • What is 5.670 rounded to whole gram
    8·2 answers
  • An item is originally priced $60.89 it is on sale for 42% of the original price which is an estimate of the sale price
    12·1 answer
  • Write the explicit formula that represents the geometric sequence -2, 8, -32, 128 show your work. 
    11·1 answer
  • Pls help me with this
    15·1 answer
  • Is 56 × 19/20 greater than or less than 56?
    7·2 answers
  • The sales manager gathered information on the numbers of sales calls made and the number of copiers sold for a random sample of
    11·1 answer
  • Ethan has an interesting 10-day job offer. He can earn a flat rate of $100 per day or
    13·1 answer
  • Please please someone help me pretty pls
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!