The length of the board, 12 feet, will be the hypotenuse of the right triangle. The measure of the distance from the board to the wall will be the unknown leg. This is adjacent to the 60° angle. This gives us the ratio
adjacent/hypotenuse, which is the ratio for cosine. This gives us the equation
<span>the equation that most accurately depicts the word problem
is 3xn=$3.85 proof n=</span> <span>n=$3.85/3=$1.28 the price is $1.28 per pound, 3 pound costs 3x$1.28=$3.85 </span>
