Posted by **Carson** on Sunday, January 9, 2011 at 7:14pm.

simifly. Use the commutative associative and distributive properties.

1. 175 + 37 + 25

2. 50(11 x 2)

3. 12/(99

can someone explain to me how to do these please?

- Math -
**Damon**, Sunday, January 9, 2011 at 7:57pm
200+37 = 237

50*2 = 100

100*11 = 1100

[12/(100-1)] [(100+1)/(100+1))]

[1200 +12]/(10,000-1)

1212/9,999 etc

.1212121212........

- Math -
**Damon**, Sunday, January 9, 2011 at 8:15pm
proof

.12 + .12/100 + .12/10^4 + .12/10^6 ....

geometric series, g = .12

term 1 = .12/100

term n = term(n-1)*1/100

so r = 1/100

so 1 - r = 100/100 - 1/100 = 99/100

sum = g/(1-r) = 12/100 /(99/100) = 12/99

## Answer This Question

## Related Questions

- Algebra - What property can I use to simplify these expressions? 8 * 2 + 3 10 * ...
- algebra - Simplify each expression. Justify your steps using the Commutative, ...
- MATH - Hannah is showing her work in simplifying (6.1 − 4.5) − 2.5...
- Math-properties - c(a*b) = (c*b)a Is this commutative, associative, or both? It ...
- math - Write an algebraic expression that requires each of the following ...
- Math - Janice wants to know the total number of games won by the Denver Nuggets ...
- Pre-Algebra: HELP PLEASE - I'm really bad at these, can someone help me PLEASE? ...
- Math - I just need a description of the following: Associative property of ...
- Math - I just need a description of the following: Associative property of ...
- Algebra - Explain how to use mental math to simplify the expression. a.) 8 * 3...

More Related Questions