<p>A wheel made 3,000 revolutions while traveling 45000pi inches in a straight line along the ground. What is the raidus, in inches, of the wheel?</p>
<p>1 Revolution= 2<em>pi</em>r</p>
<p>3000 Revolutions= (3000)<em>2</em>pi*r
3000 Revolutions= 45000pi inches</p>
<p>Equate and solve for r I think.</p>
<p>basically divide 45000 by 3000 to get the the size circumfrance of the wheel, (15pi = r2pi), then you divide 15pi by 2pi to get r = 7.5</p>
<p>Thank you for your quick responses! Your help is great appreciated!</p>
<p>r = 7.5</p>
<p>not sure though</p>