Renna pushed the button for the elevator to go up, but it would not move. the weight limit for the elevator is 450 kilograms, but the current group of passengers weighs a total of 750 kilograms. renna wants to determine how many 70-kilogram passengers need to get off the elevator.

The weight limit for the elevator is 450 kilograms, but the current group of passengers ... Renna pushedthe button for the elevator to go up, but it would not move. ... but the current group of passengers weighs a total of 750 kilograms. Renna wants to determine how many 70-kilogram passengers need toget off the elevator.

I could be wrong but 5. If only four 70 kilogram passengers get off then you will still be over the weight limit by 20 kilograms.

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle