# Math

posted by .

I need help solving a problem, I am stuck on this one.
Write 128 in each one of the following bases a.Five
b. Two
c. Twelve

• Math -

a) 128 = (5 * 25) + (3 * 1) = (5 * 5^2) + (0 * 5^1) + (3 * 5^0)
in base 5 __ 503

b)128 = 2^7 = (1 * 2^7) + (0 * 2^6) + (0 * 2^5) + (0 * 2^4) + (0 * 2^3) + (0 * 2^2) + (0 * 2^1) + (0 * 2^0)
in base 2 __ 10000000

c) 128 = (10 * 12) + (8 * 1) = (10 * 12^1) + (8 * 12^0)
in base 12 __ A8

9 is our largest numerical digit, so we switch to letters after that

## Similar Questions

1. ### math

This is about problem solving patterns in 4th grade. The question asks What are the fewest nunber of buttons you need to make six rows in this pattern?
2. ### algebra I

System of Equations I need help with the following problem: A youth group with 26 members is going skiing. Each of the five chaperones will drive a van or a sedan. The vans can seat 7 people and the sedans can seat five people. How …
3. ### math

Find the representation of the number 256 in the following bases: a. base six b. base twelve c. base two I get how to write the number of objects as a base(whatever), but I think this is asking me to start from the end number and work …
4. ### math

What strategy did you use in solving this problem?
5. ### algebra

How do i write; The product when the sum of y and twelve is multiplied by five is one hundred.
6. ### math

Hi I need help with this math problem: The plane that contains the points (8,3,1), (2,6,3), and (4,6,2) has an equation of the form ax + by + cz = d. Find coefficients for this equation, trying two different approaches to the problem. …
7. ### Math

write 128 in each of the following bases A) five B)two C)twelve
8. ### MATH HELP Calculus

Im stuck on a lot of questions, here they are: 24 + 12 + 6 + ...(S7) Sn = 24(2^7-1)/2-1 S7 = 24(127)/1 S7 = 3048/1 Thats what I got as an answer, but it's wrong, the real answer is a fraction answer, and its 381/8. How did they get …
9. ### algebra word problem

can youcheck these write a 2 step equation: half a dollar minus five dollars equals fifteen dollars: n/2 -5 = 15 five hours more than one half of an hour equals fifteen hours: n/2 + 5 = 15 two less than three times the number of feet …
10. ### Math

What is the constant of variation? An x-y table shows the following coordinate pairs: four comma fifteen, five comma twelve, and six comma ten. Answer 1 3 thirty sixty I have been stuck on it all day. I am in urgent need of help

More Similar Questions