10y-50=-20
10y=30 (I added 50 to -50, then added 50 to -20)
y=3 (I divided 10y by 10 to get y then divided 30 by 10)
Reply to this with any questions or if you need more clarification and I would be more than happy to help.
This is just simple subtraction, 59.99 - 47.50
The answer is C: 12.49
Since the sum of the measures of the angles exceed 180 degrees, 90 + 45 + 50 = 185 degrees, these measurements cannot make a triangle.
LETTER B
nswer:
209.8
Step-by-step explanation:
the bottom is = 11 * 5
two of the sides are 11 * 9.3 / 2 because they are triangles, and then times 2 because there are two of them
the other two sides are 10.5 * 5 / 2 , and the * 2 because there are two of them again.
(11 * 5) + (11 * 9.3 * 2 / 2) + (10.5 * 5 * 2 / 2) =209.8