Tuesday

July 22, 2014

July 22, 2014

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

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 7:57pm200+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 8:15pmproof

.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

**Related Questions**

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 ...

algebra - Simplify each expression. Justify your steps using the Commutative, ...

Math - Janice wants to know the total number of games won by the Denver Nuggets ...

math - name the property shown by each statement 9. 34+42=42+34:commutative 10. ...

math - identify the property (x+3) -2 =(3+x) -2 commutative, associative, ...

math - identify the property z(x-y) =zx -zy commutative.associative, ...

Math - I just need a description of the following: Associative property of ...

Math - I just need a description of the following: Associative property of ...

math - What property of addition is shown by 5+2=2+5 Associative Distributive ...