A plant food is made from three chemicals, labeled I, II, and III. In each batch of the plant food, the amounts of chemicals II and III must be in the ratio of 5 to 3. The amount of nitrogen must be at least 39 kg. The percent of nitrogen in the three chemicals is 8%,4%,and 5%,respectively. If the three chemicals cost $1.02 $0.86 and $0.66 per kilogram, respectively, how much of each should be used to minimize the cost of producing at least 600 kg of the plant food?

PAINT PROBLEM: A paint company makes Peony Pink Paint by mixing red and white paint in the ratio 4 to 7. How many liters of white paint does the company need to mix with 35 liters of red paint to make Peony Pink Paint? - the Paint Probl

The ratio of oblong tables to round tables at a conference is 7:1. The total number of tables at the conference is 56. How many of each type are there? There are oblong tables and (Type whole numbers.) round tables.

At a cost of $12$⁢12 per pound, how many ounces of rolled oats can be bought for $3.15$⁢3.15?

During a typical school day, Sally recorded eating the following:For breakfast:½ cup of cooked porridge (made with 200mls of full fat cows milk)2 tablespoons of maple syrup on his porridge250mls of apple drinkSally’s lunch tray consisted of:150g high fat yoghurt Can of Sprite (330mls)Two servings of hotdogs1 apple (which she gives away)½ cup mixed vegetablesBarbecue sauceOn the way home from school Sally drank the following:Gatorade sports drink (500mls)For dinner Sally ate the following:One fillet of fish – battered and deep friedDeep fried fries (equivalent to one medium sized potato)One jam donutChocolate flavoured milk (full fat milk – 250mls)Snack before bed:Ham sandwich (2 slices of white bread and 1 slices of cheese) Q1: How many servings of fruit and vegetables did Sally eat? How many servings of milk and milk products did Sally eat?

Every musician in the band plays either the fife or the drum (but not both). The ratio of fifers to drummers is 7 : 1. If 2 drummers join the group and 6 fifers quit, the ratio of fifers to drummers would be 3 : 1. How many musicians were in the original ensemble?

A laboratory has a solution that contains 9 ounces of benzalkonium chloride. If this is 15% of the total solution, how many ounces of solution does the lab have?

A property worth $10480 is shared between a widow and her children in the ratio 1: 4 respectively. Find a. The widow's share b. Each children's share if the rest of the profit was shared among her 10 children

Seema has a total of Rs.235 as currency notes in thedenominations of Rs.50,Rs.10 and Rs.5.The ratio of the number ofRs.50 notes and Rs.10 notes is 3:5.If she has a total of 15 notes,how many Rs. 5 notes does she have?