Answer:
A wall can be built by 6 men working 8*5*6=240 hours.
If 4 men works 5 hours a day, they work 20 hours/day.
It will take them 240 hours /20 hours = 12 days
4+4 is 8 so 4+5 is 9.So the strategy is a double +1. That is the strategy.
Answer:
Well 0.5 is the same as 1/2 but I'll try to help.
Step-by-step explanation:
1/9+1/8 is 0.2361. That would honestly be closer to zero but the way that it is worded, it is closer to 1/2 because you are using fractions in the problem. If you were using decimals, I would use 0.5
Answer:x=18
Step-by-step explanation:2x-9=x+9
I think the answer is true.
