Obtuse... (Sorry it is not labeled) Not a right angle since it does not have a 90 degree angle neither acute since it isnt below 60 degree and obtuse due to being over 90 degree
Answer:
2 1/4
Step-by-step explanation:
1/3 divided by 1/6 is 2
3/4 plus 2 is 2 3/4
2 3/4 minus 6/12 is simplified to 2 9/12 minus 6/12, which is 2 3/12
2 3/12 is simplified to 2 1/4
C = # of carpenter hrs , b = # of blacksmith hrs
c + b = 30...c = 30 - b
20c + 25b = 690
20(30 - b) + 25b = 690
600 - 20b + 25b = 690
-20b + 25b = 690 - 600
5b = 90
b = 90/5
b = 18 <== hrs worked as blacksmith
c + b = 30
c + 18 = 30
c = 30 - 18
c = 12 <== hrs worked as carpenter