Answer:
a. addition property of Equality
An obtuse triangle is a triangle which has one obtuse angle. <span>
Obviously, only a single angle in a </span>triangle<span> can be </span>obtuse<span> or it wouldn't be a </span>triangle.
Hope that helps you
The question is probably incomplete. What i am assuming is that the person might ask for the previous ratio or the total number of pens and pencil in the drawer.
So if it is the previous ratio it obviously would be 47 - 5 : 17 -3 so 42 : 14 and in case he or she is asking for the total number of pens and pencils in the drawer before so they were 42 + 14 hence 56.
3 times 8 is 24 and adding 7 is 31 so 31/1 divided by 19/1
U must flip the 19/1 to 1/19 and make it multiplication sign
31/1 times 1/19 is 31/19 or 1.63157