Answer:
I don't recognize this problem, please make sure the input is complete.
Step-by-step explanation:
it that the full problem?
Answer:
60/100 orrrrrrrrrrrrrrrr 6/10
Step-by-step explanation:
She earns 20 dollars as a carpenter and 25 dollars as a blacksmith
b+c=30 hours since she works 30 hours a week
25b+20c=690 since she earns 690 dollar totally and earns 25 dollars an hour as a blacksmith and 20 dollars an hour as a carpenter
lets multiply b+c=30 by -20
-20b-20c=-600
if we substract that from
25b+20c=690
5b=90
b=18 she worked as a blacksmith for 18 hours
Answer:
10x-20
Step-by-step explanation:
(5×2x)-(5×4)
10x-20
