The local garden shop has two types of soil available for purchase. Dirt Cheap soil is half compost and half wood chips and sells for $3 per cubic foot. Whole Earth soil sells for $8 per cubic foot and is a blend of 20% moss, 20% wood chips, 20% fertilizer, and 40% compost. What's the most economical way to buy between 25 and 30 cubic feet of soil so that you're sure to have at least 4 cubic feet each of moss and fertilizer, 6 cubic feet of wood chips, and 8 cubic feet of compost in the mix when you blend them all together? What's the total you would spend on soil?
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
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