The mixture is 1 cup of vinegar to 1 gallon of water. Since 1 gallon is 16 cups, it could also be 1 cup of vinegar to 16 cups of water. If we had 80 fluid ounces of water, we'd have to change the water to 5 fluid ounces to keep the mixture the same. (It's still 1 part vinegar, 16 parts water)
The ratio for this is 1:16, with the amount of water being 16 times more than the amount of vinegar. If the water has a volume of 80 fluid ounces, then the vinegar will be 80/16. This = 5 so the amount of vinegar in this ratio to make this cleaning solution is 5 fluid ounces. In other words, 5:80 Hope this helps :)
Slope of AB=(2-3)/(1+1)=-1/2; AC=(-1-3)/(-3+1)=-4/-2=2; BC=(-1-2)/(-3-1)=-3/-4=3/4. The product of two sides that are perpendicular is -1. Slopes of AB and AC are perpendicular so angle A is a right angle. ABC is a right-angled triangle.
