Let S = his average speed.
Let D = distance traveled one way
Time = distance / speed
Set up an equation:
d/6 + d/12 = 2d/S
Multiply the equation by 12s:
12s(d/6) + 12s(d/12) = 12s(2d/s)
Simplify to get:
2sd + sd = 24d
Combine like terms:
3sd = 24d
Divide both sides by d:
3s = 24
Divide both sides by 3:
s = 24/3
s = 8
His average speed was 8 mph.
<em>13/6</em>
<em>2 1/6</em>
- Step-by-step explanation:
<em>²⁾2/3 + ³⁾3/2 = </em>
<em>= 4/6 + 9/6</em>
<em>= (4 + 9)/6</em>
<em>= 13/6</em>
<em>= 2 1/6</em>
Answer:
Step-by-step explanation:
Step 1: Factor
g = a(H + n)
Step 2: Divide both sides by expression in parenthesis
g/(H + n) = a
Imma go with the second bubble shown
