if you add a negitive to a positive its like subtracting like 20 - (-30) (that would be -10) for your question its 0.6
In the rhombus, the diagonals are perpendicular.
We know, the sum of the measures of the triangle is equal 180°.
Therefore we have the equation:

<em>combine like terms</em>

<em>subtract 75 from both sides</em>
<em>divide both sides by 5</em>

<h3>Answer: x = 21°</h3>
Answer:
Step-by-step explanation:
<u>We need to find the difference in progress:</u>
- 1/3 - 2/8 =
- 1/3 - 1/4 =
- 4/12 - 3/12 =
- 1/12
The first student is 1/12 ahead