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Customers could look at a list of the prices on offer and see instantly which deal was the cheapest. The Which? So if it is so straightforward, why is it that energy prices are not being set like this already? How does energy pricing work at the moment? Examples of this include: meter provision, maintenance and reading; billing, call centre staff and other customer services; social Other costs, predominantly the energy itself bought on the wholesale market , vary according to how much energy the customer uses.

Historically, energy suppliers have recovered their fixed costs in one of two main ways. Clearly, there is an important balance to be struck between simplicity, fairness and innovation.

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Solving unit price problem. Practice: Rate problems. Comparing rates example. Practice: Comparing rates. A unit rate is a special type of ratio also called a single-unit rate. It will compare 1 unit of some quantity to a different number of units of a different quantity.

Unit rates are often used in real life situations, like when you need to convert between measurement systems. Any ratio that is not a unit rate can be turned into one. We'll discuss this a bit more later. Here are some special examples.

They are all unit conversions for units of length. These include feet, inches, and meters. The unit with the 1 will always appear on the right-hand side. This is a matter of convention.

Here's one final example you probably see all the time riding around in a car:. This rate, miles per hour, is sometimes abbreviated mph. It literally means the number of miles driven in a single hour. Sometimes, non-unit-rate ratios can be used to calculate unit rates! All you have to do is divide both sides of the ratio by the number on the right side. Consider the ratio: 20 dollars comics. Before we begin any conversions, let's talk for a moment about what this means.

This ratio says that the total price of 10 comics is 20 dollars. We convert by dividing both sides of the ratio by 10! We start by taking the price, divide it by We choose to divide by 10 since that is the number to the right of the : symbol. There is always some special number we can multiply or divide by that'll give a unit rate. Of course, that number won't always be 10, but it's out there.

Rates in the Real World Rate and unit rate are used to solve many real-world problems. Tonya will work hours in 12 weeks. You could also solve this problem by first finding the unit rate and multiplying it by What Is a Unit Rate in Math? Say: Today we are going to look at a special type of ratio called a rate. Does anyone know what I mean by a rate? Students may say that a rate is a ratio in which the quantities being compared use different units such as dollars and ounces or miles and hours.

Students may use common English synonyms for rate such as speed. If so, point out that speed means calculating how fast something is going by comparing distance to time, such as miles to hours. If necessary, explain what a rate is. Say: Rates are commonly found in everyday life. The prices in grocery stores and department stores are often rates. Rates are also used in pricing gasoline or tickets, measuring speed, or paying hourly wages and monthly fees.

Have students think of other examples of rates. In addition to common real-world examples, encourage silly or unusual rates such as hip-hop artists per zip code or diamond collars per chihuahua.

Say: Two important ideas are unit rates and unit prices. What is the difference between rate and unit rate? Or price and unit price? Does anybody have any ideas? Students will probably not know what a unit rate is, so provide them with the following explanation to explain rate vs. Say: A unit means one of something. A unit rate means a rate for one of something. We write this as a ratio with a denominator of one.

For example, if you ran 70 yards in 10 seconds, you ran on average 7 yards in 1 second. Both of the ratios, 70 yards in 10 seconds and 7 yards in 1 second, are rates, but the 7 yards in 1 second is a unit rate.



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