B) How far does the bicy circle circumfe
wheelchair
(a) the large wheel on Dmitry's wheelchair has a diameter of 57.2 cm.
he pushes the wheel round 10 times
how far does he move?
(b) the large wheel on Olya's wheelchair has a smaller diameter of 52 cm.
her wheelchair has moved forward 17.97m.
how many times has the large wheel gone round?
timepieces

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14