4 cups of peanut butter is needed to make 80 cookies how many cups of peanut butter would be needed to make 400 cookies

20 cups

Step-by-step explanation:

80 cookies are made by 4 cups

which means 1 cookie is made by

Therefore 400 cookies would require

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step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2