9514 1404 393
Answer:
$3.36
Step-by-step explanation:
On each pencil, the profit was ...
pencil profit = pencil price - pencil cost
pencil profit = $0.22 -0.15 = $0.07
The number of pencils sold was ...
(4 dz)(12 pencils/dz) = 48 pencils
Then the total profit was ...
(48 pencils)($0.07 /pencil) = $3.36
The store made a profit of $3.36 from pencils.
9514 1404 393
Answer:
KM = 4
Step-by-step explanation:
The point of the segment addition postulate is that the combined length of segments laid end-to-end is the sum of their individual lengths.*
KL +LM = KM
(5x +1) +(3x +3) = 5x +4
8x +4 = 5x +4 . . . .simplify
3x = 0 . . . . . . . . . . subtract 5x+4
x = 0 . . . . . . . . . . . divide by 3
Then the length of KM is ...
KM = 5x +4 = 5·0 +4 = 0 +4
KM = 4
_____
* Sometimes it seems that geometrical theorems simply state the obvious. Some interesting math arises from systems of geometry in which this is not true. We usually don't study those in high school.
Formula used: cos(x) = 
Hope this helped!
~Just a girl in love with Shawn Mendes
Adjective: Made up of various parts or elements