Question

1.   Solve for p.

Answer 1

1.  3( p + q ) = p
3 p + 3 q = p
3 p - p = - 3 q
2 p = - 3 q
p = - 3/2 q
2. 4 a = 2 b - 1
2 b = 4 a + 1
b = 2 a + 1/2
When a = 3:
b = 6 + 1/2 = 6.5
3.  d = r t
r = d / t
4. P = 2 L  + 2 W
90 = 2 * 15 + 2 W
90 = 30 + 2 W
2 W = 90 - 30
2 W = 60
W = 60 : 2
W = 30