Answer:
0.5
Step-by-step explanation:
total tiles = 12
green tiles = 6
so : 6/12 = 0.5
The correct match are as follows:
<span>1. Plane.
</span>B) a flat surface that extends infinitely and has no depth; it has length and width
<span>2. Perpendicular Lines.
</span><span>D) two lines that intersect at 90˚ angles.
</span><span>
3. Parallel Lines.
</span><span>A) two lines that lie within the same plane and never intersect.
</span><span>
4. Circle.
</span><span>C) a set of all points in a plane that are a given distance from a point.
</span><span>
5. Angle
</span><span>E) a figure consisting of two rays with a common endpoint.</span>
Answer:
500 ml
Step-by-step explanation:
brainless????????????
Answer:
c + d = 400
0.2c + 0.5d = 156
Step-by-step explanation:
Let
c = number of liters of 20% acid solution
d = number of liters of 50% acid solution.
c + d = 400 (1)
0.2c + 0.5d = 400(0.39)
0.2c + 0.5d = 156 (2)
From (1)
c = 400 - d
Substitute c = 400 - d into (2)
0.2c + 0.5d = 156 (2)
0.2(400 - d) + 0.5d = 156
80 - 0.2d + 0.5d = 156
- 0.2d + 0.5d = 156 - 80
0.3d = 76
d = 76/0.3
d = 253.33 liters
Substitute d = 253.33 into (1)
c + d = 400
c + 253.33 = 400
c = 400 - 253.33
c = 146.67 liters
