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
Zielflug [23.3K]
3 years ago
12

A chessboard has 64 squares. George places 1 grain of rice on the first square, 2 grains on the second square, 4 grains on the t

hird square, 8 grains on the fourth square, and so on, until he has placed grains of rice on 10 squares.

Mathematics
2 answers:
12345 [234]3 years ago
7 0

Answer: 512 grains on the 10th square. 1023 total grains on all 10 squares.

Step-by-step explanation:

Two ways: add the number of grains on each square

1+2+4+8+16+32+64+128+256+512 = 1023

Or set up an equation using sigma: Σ

Put 10 on top and n=1 on the bottom. Next to it, put 2^(n-1).

Dmitrij [34]3 years ago
3 0
The number of grains on the Nth square Is 2^(N-1). There are 512 grains on the 10th square alone, and 1,023 of them on all 10 squares together.
You might be interested in
Please answer quick! Thank You! Math
Musya8 [376]
I believe it is B.) Alternate Interior.
4 0
3 years ago
Read 2 more answers
2) Find each angle measure to the nearest degree
UNO [17]

Answer: AB=7.74in.;m<A

=57*;m<B=33*

Step-by-step explanation

this symbol means degrees *

8 0
2 years ago
Need help ASAP! Please help with the slope to this question m= <br> B=
Inessa [10]

y=mx+b

therefore m = 1/2

and b = -6

7 0
3 years ago
$500 at 4% for 3 years
dimaraw [331]
If you are trying to find the interest, it would be $60.00. To get this just multiply everything. Hope this helps!!! :)
 <span />
8 0
3 years ago
720 over P = 9, what's P
snow_tiger [21]

Answer:

80

Step-by-step explanation:

720/P = 9/1

Cross multiply.

9P = 720

P = 720/9

P = 80

8 0
3 years ago
Other questions:
  • Is 1/10 of 8000 equal 80
    12·1 answer
  • Math Help
    5·1 answer
  • Of 30 students 1/3 play sports of those students 2/5 play soccer, how many students play soccer
    10·2 answers
  • What do the graphs of multiplicative patterns have in common?
    10·1 answer
  • Karl needs to build a stage that has an area of 72 square feet.The length of the stage should be longer than the width.what are
    15·1 answer
  • Madison has 142 stickers in her collection.what is 142 rounded to the nearest ten
    7·2 answers
  • 13.<br><br> Yah umm whoever gets the answer right wins a cookie
    5·1 answer
  • Each circle counts as one whole. Write a mixed number giving the amount shaded. Then, write this amount as an improper fraction.
    14·1 answer
  • Which of these describes two thirds?​
    12·1 answer
  • Find the volume of this solid​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!