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well because You can always multiply and divide units by a number. For example, suppose you have four chairs but find that you need twice as many for a party. Here's how you represent this idea in math:
4 chairs 2 = 8 chairs
Similarly, suppose you have 20 cherries and want to split them among four people. Here's how you represent this idea:
20 cherries 4 = 5 cherries
But you have to be careful when multiplying or dividing units by units. For example:
2 apples 3 apples = ? WRONG!
12 hats 6 hats = ? WRONG!
Neither of these equations makes any sense. In these cases, multiplying or dividing by units is meaningless.
In many cases, however, multiplying and dividing units is okay. For example, multiplying units of length(such as inches, miles, or meters) results in square units:
3 inches 3 inches = 9 square inches
10 miles 5 miles = 50 square miles
100 meters 200 meters = 20,000 square meters
Similarly, here are some examples of when dividing units makes sense:
12 slices of Pizza 4 people = 3 slices of pizza/person
140 miles 2 hours = 70 miles/hour
In these cases, you read the fraction slash (/) as per: slices of pizza per person or miles per hour.
What else can I help you with?
Why can quantities with different units never be added or subtracted but can be multiplied or divided?
Because thats how y convert
Why can quantities with different units never be added or subtracted bwhy can quantities with different units never be added or subtracted but can be multiplied or diviut can be multiplied or divided?
Only like terms can be added or subtracted. 10m and 1s cannot be added; but divided, 10 m/s becomes a velocity.
Is this true that conversion factor is a ratio of equivalent values used to express the same units in different quantities?
No. The same quantities in different units.
What are the divided units?
Divided units refer to a method of expressing measurements that combines two different physical quantities, typically in the form of a ratio. For example, speed can be expressed in divided units such as meters per second (m/s), which represents distance divided by time. This concept is commonly used in physics and engineering to convey relationships between quantities, allowing for more precise communication of measurements. Other examples include density (mass per unit volume) and pressure (force per unit area).
Must quantities have different units before they can be added or subtracted?
no
Why can quantities with different units never be added or subtracted but can be multiplied or divided?
Because thats how y convert
Why can quantities with different units never be added or subtracted bwhy can quantities with different units never be added or subtracted but can be multiplied or diviut can be multiplied or divided?
Only like terms can be added or subtracted. 10m and 1s cannot be added; but divided, 10 m/s becomes a velocity.
In the metric system basic units are multiplied or divided by what amount to get larger or smaller units?
In the metric system basic units are multiplied or divided by 10 to get larger and smaller units
In the metric system basic units are multiplied or divided by what amount to get larger and smaller units?
In the metric system basic units are multiplied or divided by 10 to get larger and smaller units
In metric system basic units are multiplied or divided by what amount to get larger and smaller units?
In the metric system basic units are multiplied or divided by 10 to get larger and smaller units
What is 10 imperial units multiplied by 2.83 divided by 3.6?
=7.8611... imperial units
Is this true that conversion factor is a ratio of equivalent values used to express the same units in different quantities?
No. The same quantities in different units.
Ratio that compares 2 quantities measured in different units?
ratio that compares 2 quantities measured in diiferent units
What is a comparison of two quantities with different units?
ratios
A ratio that compares quantities of different units?
rate
What is the SI unit fro expressing the quantity?
There are different units for different quantities.
Must quantities have different units before they can be added or subtracted?
no
