Answer:
10 pounds of the $1.50 chocolate were used.
30 - x represents the number of pounds of the 0.90 chocolate used.
Step-by-step explanation:
30 * 1.10 = 1.5x + 0.9 (30 - x)
33 = 1.5x + 27 - 0.9x
0.6x = 6
x = 10
Answer:
<h3> A. Dilation and reflection</h3>
Step-by-step explanation:
There are the same angles in similar triangles but sides not necessarily.
In congruent triangles there are the same angles and the same sides.
Reflection, rotation or translation changes only position of triangle or mirrors it. Doesn't change the size, so the created triangle is congruent.
Julie is correct because LxWxH only applies to 2 dimensional shapes so therefore you need to use x to the power of 3 formula
3x+y=17
x+2y=49
Times 3 for both side
3x+6y=147
-
3x+y=17
=
5y=130
Divided 5 for both side:
y=26
3x+y=17
3x+26=17
Subtract 26 for both side
3x=-9
Divided 3 for both side
x=-3. Hope it help!