Answer:
0.387
Step-by-step explanation:
11x -15 = 5x-13
or, 11x-5x = -13+15
or, 6x = 2
or, x = 2/6 = 1/3
Answer is 1/3
It would be an obtuse angle
$82
If the coat is 1/3 off then you pay 2/3 of the price. To find a sale price, multiply the cost by 2/3.
123(2/3) = 246/3 = 82