Machine A and machine E are each used to manufacture 660 sprockets. It takes machine A 10 hours longer to produce 660 sprockets than machine E. Machine E produces 10 percent more sprockets per hour than machine A. How many sprockets per hour does machine A produces?	Choose the correct choice from the following answers:	A) 6	B) 6.6	C) 60	D) 100	E) 110
[Reveal]Spoiler:   TimeE: 660/x   Time6: [660/x+10]   660/x = [660/x+10] *110/100   660/x =66*11/x+10   660x+10= 66*11*x   660x +6600 = 66*11*x   x= 100   plug in back to time6   660/100+10 =&gt; 660/110= 
<gadget id="calculator">660/110</gadget>
<output>6</output>
6
<result>A</result>
Machine A and machine E are each used to manufacture 660 sprockets. It takes machine A 10 hours longer to produce 660 sprockets than machine E. Machine E produces 10 percent more sprockets per hour than machine A. How many sprockets per hour does machine A produces?