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
kicyunya [14]
3 years ago
8

A radio company plans to create a new game show called Double Up. Contestants are asked a number of questions; they get £5 if th

ey only answer one question correctly, £10 if they answer two questions correctly, £20 if they answer three questions correctly and so on. The money to be received doubles each time another question is answered correctly.
Which of the following options is the pay out for a contestant who correctly answers 20 questions?

Select one:

£52428800

£2621440

£100

£1310720

£200

£5242880
Mathematics
1 answer:
Levart [38]3 years ago
8 0

Answer:

The correct option is B) £2621440.

Step-by-step explanation:

Consider the provided information.

Contestants are asked a number of questions; they get £5 if they only answer one question correctly, £10 if they answer two questions correctly, £20 if they answer three questions correctly and so on.

This form a G.P

5, 10, 20, 40.....

The nth term of a GP series is a_n=a_1\cdot r^{n-1}

Where a₁ is the first term and r is the common ratio.

Here the first term is 5 and we need to find the value of 20th term.

The common ratio is: \frac{a_2}{a_1}=\frac{10}{5}=2

Substitute the respective values in the above formula.

a_n=5\cdot 2^{20-1}

a_n=5\cdot 2^{19}

a_n=5\cdot 524288

a_n=2621440

Hence, the correct option is B) £2621440.

You might be interested in
Solve for x.<br> 144°<br> 18 degrees<br> 30 degrees<br> 48 degrees<br> 120 degrees
disa [49]

Answer:

<h2><u><em>x = 18 °</em></u></h2>

Step-by-step explanation:

you have a rotation angle of 360 °, take out the known values ​​(360 ° -90 ° -144 ° = 126), 144 ° is part of a flat angle of 180 °, from 180 ° remove 144 and you have 36 °, they are opposite angles therefore the same. therefore 360 ​​- 144 - 90 - 36 - 36 = 54.

54 is 3x, so x = 18 ° (54 : 3 = 18)

7 0
2 years ago
Find the value of x which ABCD must be a parallellogram?<br> x =
aev [14]
If\ ABCD\ is\ a\ parallelogram,\ then\\\\2x-1=x+3\ \ \ |add\ 1\ to\ both\ sides\\\\2x=x+4\ \ \ \ |subtract\ x\ from\ both\ sides\\\\\boxed{x=4}
3 0
3 years ago
Triangle N Q L has centroid S. Lines are drawn from each point through the centroid to the midpoint of the opposite side to form
Doss [256]

Answer:

36

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Which relationship describes angles 1 and 2? Select each correct answer. A)adjacent angles
Talja [164]
Hey there!

As you can see, they are lying on the same line.

When two angles are on the same straight line, they are adjacent. 

Adjacent angles 
are supplmentary. 

Adjacent angles= 180 degrees Supplementary= 180 degrees

They are choices "A" and "B". 

I hope this helps!
~kaikers
6 0
3 years ago
URGENT PLEASE HELP Find the slope
hichkok12 [17]

Answer:

2/3

Step-by-step explanation:

Look it up

Your on IXL

And your in 8th grade

SKSKSKSKSKSKSKKSKSKSSK

7 0
3 years ago
Other questions:
  • 2. When do national party conventions meet?
    9·2 answers
  • What is the definition of proof in geometry
    5·2 answers
  • Elena and her best friend found some money in an envelope. They split the money evenly, each getting $25. How much money did the
    13·1 answer
  • If 400g; 1kg<br>find the ratio in <br>Simplest form.<br>​
    5·1 answer
  • Kya is mailing a package to her friend for her birthday. The United States Post Office charges her a flat fee of $8.50 for packi
    15·1 answer
  • Jill bought 3 cookies and 2 cupcakes for $12.25. Kim bought 5 cookies and 1 cupcake for $14.00.
    12·2 answers
  • Leon receives a birthday gift of $50 from his parents. Each week he saves $5.00. How many weeks will it take for him to save $12
    14·1 answer
  • Work out the size of angle x 126 degrees exterior and 43 degrees interior
    13·1 answer
  • 9×8 break up into expressions
    6·1 answer
  • Does anybody know what Savvas is? cause I don't know the answer to 6.4 x 3.7 can anybody help.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!