Answer:
-15625
Step-by-step explanation:
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Answer:
127.5
Step-by-step explanation:
(2x+7)+(6x-9)=180
2x+6x+7-9 = 180
8x-2=180
8x=182
x=22.75
6x-9=
6(22.75)-9=
136.5-9=
127.5 Answer
Answer:
32/24
Step-by-step explanation:
opposite/ adjacent
90 sides give us 90 angles
sum of all inside angels is (n-2) * 180 deg. where n is number of angels
so one inside angle is
(90-2)*180 deg / 90 = 88* 2 deg = 176 deg.
measure of exterior angle is 360 - 176 = 184 deg.
First add the 8 to both sides, canceling out the 8 in the right and adding it to the 19 on the left, making it 27. Multiplying undoes division so, After that, multiply by three on both sides, canceling out the three on the right and multiply 27 by 3, making it 81.