180 divided by 3 = 60
60 x 5 = 300
she can type 300 words in 5 minutes
Answer:
x=20 degrees
Step-by-step explanation:
complementary means the angles equal 90 degrees
so ∠A+∠B=90 degrees
∠A=3x-2 and ∠B=x+12
so subsitute
(3x-2)+(x+12)=90
then solve for x
4x+10=90
4x=80
x=20 degrees is your answer
Hi, I think you forgot to write a part of the problem, could you write the rest in the comments please. I would be happy to help you

just a plain vanilla substitution