Answer:
A is not 3, 7
Step-by-step explanation:because it isint
Answer:
The fourth one.
Step-by-step explanation:
I am pretty sure.
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
Answer:
A
Step-by-step explanation:
because it makes more sense
There is not alot information to answer the question.
