The sum of the measures of the angles in a triangle is 180°.
Therefore we have the equation:
2x° + 3x° + 55° = 180°
5x° + 55° = 180° <em>subtract 55° from both sides</em>
5x° = 125° <em>divdie both sides by 5</em>
x° = 25°
<h3>Answer: x = 25</h3>
66.875 = 66 7/8 as a mixed number
Answer:
18
Step-by-step explanation:
There are 2+3 = 5 ratio units representing 45 band members, so each ratio unit represents 45/5 = 9 band members.
The 2 ratio units of sixth graders represent 2×9 = 18 sixth grade band members.
Answer:
Step-by-step explanation:
(–1)8 + (–1)7 + –16 + –14 – (–1)2 = -8 -7 -16 -14 +2 = -45+2 = - 43
