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3 years ago

How are addition properties and subtraction rules helpful when solving problems

2 answers:

8 0

For the sum we have the following properties:
The properties are commutative, asosiative, distributive and neutral element.

Commutative property: When two numbers are added, the result is the same regardless of the order of the addends.

Associative property: When three or more numbers are added, the result is the same regardless of the order in which the addends are added.

Neutral element: The sum of any number and zero is equal to the original number.

Distributive property: The sum of two numbers multiplied by a third number is equal to the sum of each summand multiplied by the third number.

For subtraction we have:

 The arithmetic operation of the subtraction (subtraction) is indicated by the minus sign (-) and is the opposite, or inverse, operation of the addition. That is, it is an arithmetic operation that serves to find the difference between two numbers.

In subtraction A - B = D
A is the minuendo
B is the substraendo
D is the difference

Answer:
The properties of addition and subtraction serve to rewrite and simplify calculations.

Oduvanchick [21]3 years ago

8 0

The addition and subtraction properties include four mathematical properties:commutative property, associative property, identity property and inverse operations. These properties are helpful in solving problems, because they help to regroup numbers so at the end you will have an easier and simpler equation to solve.

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Tasya [4]

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3 years ago

Which algebraic expression represents "the quotient of 7 and a number"? 7/n O 7+n o 7n 7-n

Mekhanik [1.2K]

Answer:

7/n

Step-by-step explanation:

quotient means division and the only answer choice with a division sign is 7/n where n is the unknown number.

Hope this helped and pls mark brainliest!

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3 years ago

The gardening club at school is growing vegetables. The club has 300 square feet of planting beds. Cucumber plants require 6 squ

nadya68 [22]

The question doesn't ask anything in particular, I will show the set of inequalities defined in the problem.

Answer:

System of inequalities:

$6c+4t\leq 300$

$c>0\\t > 0\\c+t\geq 60$

Step-by-step explanation:

Inequalities

The express relations between expressions with a sign other than the equal sign. Common relationals are 'less than', 'greater than', 'not equal to', and many others.

The gardening club at school has 300 square feet of planting beds to plant cucumber and tomato. Each cucumber plant requires 6 square feet of growing space and each tomato plant requires 4 square feet of growing space. We know the total area cannot exceed 300 square feet, so

$6c+4t\leq 300$

Being c and t the number of cucumber and tomato plants respectively.

We also know the students want to plant some of each type of plant and have at least 60 plants. This lead us to more conditions

$c>0\\t > 0\\c+t\geq 60$

Note: The set of inequalities shown is not enough to uniquely solve the problem. We need something to maximize or minimize to optimize c and t

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3 years ago

SoIve: 12 = -4(-6x - 3) x = -0.625 x = -0.375 x = -2 x = 0

Vinvika [58]

Answer:

The answer is "x = 0"

Step-by-step explanation:

Step-by-step explanation: Hope this answer is helpful...

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3 0

3 years ago

One employee pours 6 ounces of coffee in the large frappuccino.

Reil [10]

Answer:

The employee's action is not following the instructions.

Step-by-step explanation:

The drinks table has some recommendations to make some drinks exclusive to the establishment such as the Large Frapuccino or the Small Chai Tea, which in its first line corresponding to the Large Frapuccino specifies that at least 8 ounces of coffee should be used, which it wants to say is the minimum amount of coffee that can be added to it is 8 ounces, and the value could be higher than that, but never lower, which is why by adding only 6 ounces to the Frapuccino you are totally ignoring the instructions.

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3 years ago