Opposite angles are supplementary, the sum is 180 degrees.
6x+10+81.5=180
Combine like terms:
6x+91.5=180
Subtract 91.5 to both sides:
6x=88.5
Divide 6 to both sides:
x=14.75
The answer is 1) 14.75
Hope this helped!
Answer:
2.4166666666 (6 forever)
Step-by-step explanation:
Answer:
20 %
Step-by-step explanation:
% Increase = Increase/Original value × 100 %
Data:
Original = $25
This year = $30
Calculations:
Increase = This year - original
= 30 - 25
= $5
% Increase = 5/25 × 100 %
= 20 %
The percent increase of the price of the necklace was 20 %.
Answer:
x = -5
Step-by-step explanation:
to evaluate for x in this this question -5x-(8-x)=12
the firsst step, you would open the bracket with - then evaluate for the value of x
solution
-5x-(8-x)=12
-5x -8 + x = 12
combine the like terms
-5x + x = 12 + 8
-4x = 20
divide both sides by the coefficient of x
-4x/-4 = 20/-4
x = -5
