Answer:
I believe the second one
Step-by-step explanation:
Because it's angles are all less than 90 degrees so it could be an acute triangle. I am sorry if it is wrong.
If five people can do it in 12 hours, then you divide and see how long it takes each person. then you figure the rate for how many hours per person. then you figure out how many peopl it takes to do it all in 3 hours
For this equation, all are subtraction symbols which means you don't need to care about the parenthesis as they do nothing.
Basically, it's the associative property because the parenthesis do nothing to the equation and both sides stay the same
Answer:
Step-by-step explanation:
2(10)+1(n)=31
20+n=31
n=31-20
n=11
Since the highest possible value for n is 9, there is no way to make 31 if 2 is in the tens column.
Answer:
46
Step-by-step explanation:
