# Posts by Ofenbach

Total # Posts: 4

**algebra**

9 n = 81 Divide both sides with 9 9 n / 9 = 81 / 9 n = 9 9 * 9 = 81

**Algebra**

1. 1 in = 2 ft Divide both sides with 2 0.5 in = 1 ft 0.5 * 8 = 4 in 0.5 * 12 = 6 in 4 in by 6 in 2. 1 in = 4 ft Divide both sides with 4 0.25 in = 1 ft 0.25 * 8 = 2 in 0.25 * 12 = 3 in 2 in by 3 in

**algebra**

5d = 35 Divide both sides with 5 d = 7

**math**

23 x 17 10 x 20 = 200 10 x 3 = 30 7 x 20 = 140 7 x 3 = 21 200 + 30 + 140 + 21 = 391 23 x 17 = 391