that

1. TGIF Nov. 20, 2015

2. The sum of two additive inverses (or opposites)
is equal to what?
The product of two multiplicative inverses
(or reciprocals) is equal to what?
zero
one
Add the opposite & reciprocal of
𝟐
𝟓
to the opposite
& reciprocal of -
𝟏
𝟒
The opposite of what number divided
by
𝟐
𝟑
is the opposite of nine?
𝟑
𝟐
or 1
𝟏
𝟐
𝟔
Warm-Up/Review: (1 of 3)

3. Warm-Up/Review: (2 of 3)
If you ate
1
𝟒
of a pizza and then came back and ate
1
𝟑
of what was
left, what fraction of the pizza did you leave for everyone else?
The reciprocal of what number a𝐝𝐝𝐞𝐝 𝐭𝐨
𝟕
𝟒
is two? 𝟒
𝟏
𝒙
=
𝟏
𝟒

4. Find the lengths of each
side of the triangle.
A = B = C =𝟏𝟕 𝟑𝟎 𝟐𝟓
Warm-Up/Review:(3 of 3)
ax + 15b = 9b -3ab
x =
−𝟑𝒃(𝟐+𝒂)
𝒂
Solve for x and simplify:
- 3p – 18rp
6p + 9rp
Simplify

5. .025
Finding the Reciprocal of a Decimal
Question: How do you find the reciprocal of 3.14?
Step 1: Convert the decimal into a fraction
Step 2: Find the reciprocal.
Find the simplified reciprocal of 4.5
𝟐
𝟗
𝟒𝟎
𝟏
= 40