16x+60y
16(.75)+60(.25)
12+15=27
maria would charge $27 for this necklace
Original is the whole = 5/5
After reduction is 2/5
2/5 =0.4 = 40%
Draw a rectangle.
Divide it in 5 parts
Shade 2 parts.
This is the new dimension 2/5 or 40%
X = 5 -
-7x - 3x + 2 = -8x - 8
+ 7x +7x
-3x + 2 = -x - 8
+3x +3x
2 = 2x -8
+8 +8
10 = 2x
/2 /2
x = 5