Math

posted by .

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 -

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 -

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

Similar Questions

1. Math

I just need a description of the following: Associative property of Multiplication Associative Property of Addition Commutative properties Distributive Property Identity property(I don't need to know much about this) Zero property(i …
2. Math

I just need a description of the following: Associative property of Multiplication Associative Property of Addition Commutative properties Distributive Property Identity property(I don't need to know much about this) Zero property(i …

4. algebra

Simplify each expression. Justify your steps using the Commutative, Associative and Distributive Properties when necessary 8k2 + 4k - 3k2 + 3^2 - k + 5 Please let me
5. Math-properties

c(a*b) = (c*b)a Is this commutative, associative, or both?
6. Math

Janice wants to know the total number of games won by the Denver Nuggets basketball team over the three seasons shown in the table. What expression should she simplify?
7. math

Write an algebraic expression that requires each of the following properties of real numbers to simplify, in the order given: the Distributive Property, the Associative Property of Addition, the Commutative Property of Addition, and …
8. Algebra

Explain how to use mental math to simplify the expression. a.) 8 * 3 * 2 b.) 8 * 2 + 3 c.) 5 + 8 + 3 d.) 10 * 3 -4 I have to include what properties (associative, distributive etc.) I used to simplify the problems.
9. Algebra

What property can I use to simplify these expressions?
10. MATH

Hannah is showing her work in simplifying (6.1 − 4.5) − 2.5 + 3.9. Identify any error in her work or reasoning. Step 1: (6.1 − 4.5) − 2.5 + 3.9 Step 2: 6.1 + (− 4.5 − 2.5) + 3.9 (associative property) …

More Similar Questions