0
What must quantities have before they can be added or subtracted?
Wiki User
∙ 12y ago
They must have compatible units of measure.
For example, you cannot directly add a quantity measured in meters to a quantity measured in centimeters. If their units of measure are compatible but not identical, one can be converted to the other.
On the other hand, there is no way to add a quantity in feet to a quantity in pounds, as those are incompatible units of measure.
Additionally, if the quantities are fractions, they must also have the same denominators, also called sharing a common denominator.
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
How do you write an expression in quadratic form?
Write an expression consisting of up to three terms:One term in which the key variable is squared,one term with a multiple of the variable, anda constant.The first of these MUST be present. The three terms must be added or subtracted.
Which least no must be subtracted from 149 to make it perfect square?
5
What is the least number that should be subtracted from 832 to make it exactly divisible by 49?
The answer is 48illustration:833 is a multiple of 49 which is more than 832the multiple which is immediately less than 833 is 784so the difference that must be subtracted is 832- 784 = 48
What must be added to 452664 to make it a perfect square?
Sqrt of 453664 is 672 and a bit.So next square is 673 squared, ie 452929, so 265 must be added.
When subtracting variables with exponents do you add or subtract the exponenets?
You cannot ad or subtract variables with different exponents: the exponents must be the same. The coefficients are added or subtracted and the exponent of the answer is the common exponent. (The rules are similar to those for the denominators of fractions.)Thus 2x^2 + 5x^3 cannot be combined into a single term.while 2x^2 + 5x^2 = (2+5)*x^2 = 7x^2
Must quantities have different units before they can be added or subtracted?
no
What is the smallest number of nucleotides that must be added or subtracted to alter the reading frame?
3
What has to be added to a substance to cause a phase change?
Heat energy must be added to or subtracted from a substance to cause a phase change.
What must be subtracted from -3 to get -9?
6
What is the smallest number of nucleotides that must be added or subtracted to change the triplet grouping of the genetic message?
1
What is the smallest number of nucleotides that must be added or subtracted to cause a frame- shift in the triplet grouping of the genetic message?
1
What is the requirement to add or to subtract fractions?
The denominator (bottom number) must be the same for all the fractions being added or subtracted together.
What is the definition of weber's law?
The principle that for any change in a stimulus to be detected, a constant proportion of that stimulus (s) must be added or subtracted.
Why do you convert unlike fractions?
Unlike fractions have denominators that are unequal, and therefore cannot be added or subtracted. If two fractions need to be added or subtracted they must first be converted to like fractions.
What is the roman numerals for 293?
CCXCIII The rule is that any symbol that is smaller value than the next must be subtracted from the next, not added to the one before. So two C s make 200, XC is 90, III is 3
What must be done to a mixed number before it can be added subtracted multiplied or divided?
For addition and subtraction, nothing. For multiplication, nothing provided you are able to use the distributive property efficiently. For division the mixed fraction should be converted to a top-heavy fraction. Although this can help with the other operations, it is not a "must".
What must be subtracted from 9005413 to get 7906547?
1098866
