Let k = Kitty's mass
w = Fluffy's mass
Then, k = 2.5w
k + w = 7.5
From the second equation, we have k = 7.5 - w.
Substitute for k in the first equation to get 7.5 - w = 2.5w.
Morgan M.
asked • 01/03/15constructing linear equations word problems
Kitty's mass is 2 1/2 times as much as Fluffy's, and together their total mass is 7.5kg.
Write an equation to determine Fluffy's mass, w, in kilograms. Do not solve the equation for w.
Write an equation to determine Fluffy's mass, w, in kilograms. Do not solve the equation for w.
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Morgan M.
01/03/15