Assume that when you take a bath, you fill a tub to the halfway point. The tub measures 6 feet by 3feet by 2.2 feet. When you take a shower, you use a shower head with a flow rate of 1.94 gallons per minute, and you typically spend 9 minutes in the shower. There are 7.5 gallons in one cubic foot. A. Do you use more water by taking a shower or a bath? By how many cubic feet? B. How long will you need to shower in order to use as much water as you use taking a bath?
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.
Assume that when you take a bath, you fill a tub to the halfway point. The tub measures 6 feet by 3feet by 2.2 feet. When you take a shower, you use a shower head with a flow rate of 1.94 gallons per minute, and you typically spend 9 minutes in the shower. There are 7.5 gallons in one cubic foot.
A. Do you use more water by taking a shower or a bath? By how many cubic feet?
B. How long will you need to shower in order to use as much water as you use taking a bath?
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