Question 1185023
<pre>
                           PRICE,$       QUANTITY       COST

EVERYDAY MOISTURIZING      0.3             300        (0.3)(300)

SELF-TANNING               2.0            {{{t}}}         {{{2t}}}

New Mixture                1.5           {{{300+t}}}   {{{2t+0.3*300}}}
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Equation to solve:   {{{highlight_green((2t+90)/(t+300)=1.5)}}}