The marks or intervals on a ruler are called hash marks. That particular hash mark measures 0 millimeters. Hash marks are used for telling the measurement of an object.

8 0

2 years ago

Can you please help with #2

Alenkinab [10]

Turn 1 7/8 into 15/8
15/8 times 4/5 is60/40
60/40 is 1.5

3 0

2 years ago

Two angles are supplementary if the sum of their measures is 180 degrees. find two supplementary angles such that the smaller is

kaheart [24]

If the larger angle is x and the smaller angle is y, y=(1/2)x+30 since it's 30 more than 1/2 of it. In addition, x+y=180 since they are supplementary. Plugging y=(1/2)x+30 into that, we get x+x/2+30=180=1.5x+30. Subtracting 30 from both sides, we get 1.5x=150. Next, we can divide both sides by 1.5 to get x=100 and y=(1/2)*100+30=50+30=80

8 0

2 years ago