Answer:
25
x
2
−
20
x
y
+
180
y
2
Step-by-step explanation:
Factor 5 5 out of 25 x 2 25x2.
5 ( 5 x 2 ) − 20 x y + 180 y 2 5(5x2)-20xy+180y2
Factor 5 5 out of − 20 x y -20xy.
5 ( 5 x 2 ) + 5 ( − 4 x y ) + 180 y 2 5(5x2)+5(-4xy)+180y2
Factor 5 5 out of 180 y 2 180y2. 5 ( 5 x 2 ) + 5 ( − 4 x y ) + 5 ( 36 y 2 ) 5(5x2)+5(-4xy)+5(36y2)
Factor 5 5 out of 5 ( 5 x 2 ) + 5 ( − 4 x y ) 5(5x2)+5(-4xy). 5 ( 5 x 2 − 4 x y ) + 5 ( 36 y 2 ) 5(5x2-4xy)+5(36y2)
Factor 5 5 out of 5 ( 5 x 2 − 4 x y ) + 5 ( 36 y 2 ) 5(5x2-4xy)+5(36y2). 5 ( 5 x 2 − 4 x y + 36 y 2 )
$48.865 per headphone
<u>unit rate</u> : total cost/total items
unit rate:
390.92/8
48.865
Each headphone costs $48.865
Answer:
I think the answer is 2/5
Step-by-step explanation:
There are 10 ducks and there are 4 of them that are multiple of 3 (9, 18, 21, 27).
You end up with 4/10 but that is not an option.
If you reduce it you will end up with 2/5
