Answer:25 %
Step-by-step explanation:
Given
Earlier machine was producing 52 ice cream per minute and
Now it is Producing 65 ice creams per minute
So percentage increase of the machine 


So there is increase of 25 % in speed
First, you would need to determine how much it would cost her if it was three for $1 or seven for 42.
Three for $1:
21 ÷ 3 = 7
7 × $1.00 = $7.00
Seven for $2:
21 ÷ 7 = 3
3 × $2.00 = $6.00
Now, all you would need to do is find the difference.
$7.00 - $6.00 = $1.00
Jackie would have saved A. $1.00.
I hope this helps!
Step-by-step explanation:
(2 cos(2x)) / (cot x – tan x)
Multiply top and bottom by sin x cos x:
(2 cos(2x) sin x cos x) / (cos² x – sin² x)
Use double angle formula:
(2 cos(2x) sin x cos x) / (cos(2x))
2 sin x cos x
Use double angle formula:
sin(2x)
Answer:
2n+3
Step-by-step explanation: