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Why cant you add two numbers that have the same dimensions whereas you can add two that have the same unit explain why and give example?
Wiki User
∙ 12y ago
The unit represents a quantity of the dimension. Now of course you must be in the same dimension, first - you cannot add a square foot (area) to a foot (length), for example.
Named units are not limited to measurements like length, volume, time, etc. Here's an example that may be helpful. You have a carton with 1 dozen eggs, and 1 extra egg. Everything is eggs (the dimension). But if you say you have 1 + 1 = 2. Then 2 what? 2 eggs or 2 dozen eggs (24). How about you have a quarter and a dime. You have 2 coins, but what is the value? Is it the same value as 2 pennies? No. You must convert them to a common unit (cents for example). Then you have 25 cents + 10 cents = 35 cents.
In the same way, if you measure 1 inch + 1 centimeter, how long is the measurement: it's not 2 (well of either of those units, anyway). You can convert the 1 inch to 2.54 centimeters, then add it to the 1 centimeter, to arrive at 3.54 centimeters. Or you could convert the 1 centimeter to inches, if you want. So the thing to remember here: The centimeter, inch and cent all represent some quantity or value of measurement.
Wiki User
∙ 12y ago
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24 and 35 are composite numbers because they have more than two factors whereas 31 is a prime number because it only has two factors.
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Is 85 prime or composite explain?
85 is a composite number because it has more than two factors whereas prime numbers have only two factors
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Congruent figures are identical in dimensions and angles whereas similar figures have dimensions in proportion to congruent figures but both have exactly the same angles.
What do you know about rational numbers?
All rational numbers can be expressed as fractions whereas irrational numbers can't.
What is rerational and irrational numbers?
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