The answer is B. 4 3⁄8 yards. The amount of material needed for the jacket is: x = 2 5/8 yd = 2 + 5/8 = 16/8 + 5/8 = (16+5)/8 = 21/8 yd. The amount of material needed for the skirt is: y = 1 3/4 yd = 1 + 3/4 = 4/4 + 3/4 = (4+3)/4 = 7/4 yd. The total amount of material Jane needs is: x + y = 21/8 + 7/4 = 21/8 + 14/8 = (21+14)/8 = 35/8 = (32+3)/8 = 32/8 + 3/8 = 4 + 3/8 = 4 3/8 yd.
x + y = 120° (given) x = y - 12 Then, y + y - 12 = 120° (y + y) - 12 = 120° 2y - 12 = 120° 2y = 120 + 12 = 132° y = 132/2 = 66° x = y - 12 = 66 - 12 = 54° There you go :)
