Andy and Bob took a test that had 120 problems. Andy got 30 more problems correct than Bob. The number of problems that only Andy got correct is six times the number of problems that both boys got correct. There are 20 problems that neither boy got correct. How many problems did both boys get correct?

the answer is 100 cuz if the test was 120 questions and both boys got 30 plus questions right and 20 questions wrong then the answer would be 100 questions right

hope it you

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

it’s supposed to be -4+45=41

step-by-step explanation: