9) 216 in
10) 12 yd
11) 3.75 ft
12) 30 yd
13) 8 ft
14) 26 ft
Angles:
2 acute angles and 2 obtuse angles
Sides:
2 pairs pf parallel sides
Mary's lemonade contains both water and juice concentrate. For every 5 cups of juice concentrate there's 9 cups of water. Justin's lemonade contains water and juice concentrate as well. For every 12 cups of juice concentrate there's 15 cups of water.
Hope that helped you.
b= 8
Step-by-step explanation:
If we rewrite the 2nd equation, it becomes
15y = -6x - 11 ---> y = (-2/5)x - (11/15)
In order for this system of equations to have no solution, they must have the same slope, i.e., they're parallel to each other. So rewriting the 1st equation,
20y = -bx + 11
---> -b/20 = -0.4 or b = 8