If a 10-pound bag of dog food sells for $6. 99, then $-3.01 is the per unit cost of the dog food.
The unit method is a method of solving a problem by first finding the value of a single unit, then multiplying the value of that single unit to find the necessary value.
For example, to solve this problem: How far does he walk in his 7 hours?", first calculate how far the person walks in his 1 hour. We can assume that he will run half the distance in half the time. Therefore, dividing by 2, the man said that in one hour he would walk 3.5 miles. Multiply by 7 by 7 hours and the man will walk 7 x 3.5 = 24.5 miles. That is, take the distance traveled by the man as X and divide by the given distance (7 (x/7)). equals the time it takes to travel X distance (7 hours) divided by the time it takes to travel 7 miles (2 hours) (7/2) so x/7=7/2 so X = 24.5 miles.
Learn more about Unitary Method here: https://brainly.com/question/19423643
#SPJ4