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sdas [7]
3 years ago
6

(x +y) + Z commutative property of addition

Mathematics
1 answer:
goldenfox [79]3 years ago
8 0

Answer:

Step-by-step explanation:

commutative property of addition :  x + y = y + x

example : 2+3 =5 and 3+2 =5 then 2+3=3+2

associative property of addition

x + y + z = (x + y) + z = x + (y + z)

example: 2+3+4 = (2+3)+4 = 5 + 4 =9

               2+3+4 = 2+(3+4) = 2 + 7 = 9

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1/20

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Simplify the expression and identify which property is used in each step.
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1.2

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(0.85 + 0.50 + 0.15) - 0.30           Given

Simplify by adding in the parentheses first

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Read 2 more answers
An electrician needs to cut a 49 m piece of wire into two pieces so that one piece is 5 m longer than the other piece. What is t
gulaghasi [49]

The length of the shorter wire that the electrician cuts so that the difference between those two is of 5 m is 22.5.

Given to us

An electrician needs to cut a 49 m piece of wire into two pieces so that one piece is 5 m longer than the other piece.

<h3>What are the two equal parts of the wire?</h3>

We know that the length of the wire is 49 m, therefore, to cut the wire in two equal parts divide the total length of the wire by two,

\dfrac{49}{2} = 24.5

Thus, the length of each side will be 24.5.

<h3>What is the length of the shorter piece of wire?</h3>

Since we need to cut the wire such that one side of the wire is 5 less than the other, we already know the length of the equal sides deduct (5/2) from both sides to create a difference between the length of the wire.

Length of the shorter wire = 24.5 -2.5 = 22.5

Length of the longer wire = 22.5 + 5 = 27.5

Hence, the length of the shorter wire that the electrician cuts so that the difference between those two is of 5 m is 22.5.

Learn more about Lengths:

brainly.com/question/8552546

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2 years ago
Simplify the expression square root 18 + square root 50 .
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