Question 1203429
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A formal algebraic solution is good exercise, but solving the problem informally using logical reasoning is also good problem-solving practice.<br>
The mixture is 2+4 = 6 ounces worth $3 per ounce, so the total value is 6($3) = $18.<br>
The 4 ounces of canola oil worth $4 per ounce have a total value of 4($4) = $16.<br>
So the 2 ounces of soybean oil must be worth $18-$16 = $2.<br>
That makes the price per ounce of the soybean oil $2/2 = $1.<br>
ANSWER: $1<br>