He worked as a carpenter for 12 hrs. and as a blacksmith for 18.
Answer:
7.635
Step-by-step explanation:
i hope it helps:)
You solve this by plugging one equation into the other. Usually you have to rewrite one equation to make this work. In this case I choose to rewrite y-4x=0 as y=4x.
After plugging it into the second, you get:
3x + 6*4x = 9 => 27x = 9 => x=1/3
Putting this solution back into y=4x gives us y=4/3
The last one is correct because 60+35+35+35=165
55+55+55=165