Question 299808
In the playoff game, the ball was carried by either Anderson or Brown on 21 plays. Anderson gained 36 yards and Brown gained 54 yards. If Brown averaged twice as many yards per carry as Anderson, then on how many plays did Anderson carry the ball? 


You did set up the equation correctly, although I would’ve made Anderson’s carries equal to A, instead of x


Anyway, your equation, {{{(2*36)/(x) = 54/(21-x)}}} would be solved by cross-multiplication, which would give us:

2(36)(21 – x) = 54x


1,512 – 72x = 54x


-72x – 54x = - 1,512


-126x = -1,512


Amount of carries that Anderson had, or x was: {{{(-1512)/-126}}} or {{{highlight_green(12)}}}

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