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3 years ago

Definition of the identity property of addition and the commutative property of addition

2 answers:

7 0

The identity property of addition states that if we add zero to any number, then the sum is equal to the original number.

For example, the identity property tells us that 5 + 0 = 5.

In general terms, the identity property of addition can be written as followed.

a + 0 = a

This means that "a" is a variable that represents any number.

The commutative property of addition states that changing the order of the addends does not affect the sum.

For example, 2 + 3 = 3 + 2.

No madder what side we do, they both equal 5.

Novay_Z [31]3 years ago

6 0

Let x, y be numbers.
The addition identity property states that 0 + x = x.
The commutative property states that x + y = y + x

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The combustion of one gallon of automobile fuel produces about 5 pounds of carbon (in CO₂). Two autos are making a trip of 600 m

rewona [7]

Answer:

Approximately 50 pounds less carbon (in CO₂) will be produced by the second auto on this trip.

Step-by-step explanation:

We have been given that the combustion of one gallon of automobile fuel produces about 5 pounds of carbon (in CO₂). Two autos are making a trip of 600 miles.

Let us find amount of fuel used by autos by dividing the total distance by their mileage.

$\text{Fuel used by 1st auto}=\frac{\text{ 600 miles}}{\frac{\text{ 20 miles}}{\text{gallon}}}$

$\text{Fuel used by 1st auto}=\frac{\text{ 600 miles}}{\text{ 20 miles}}\times \text{gallon}$

$\text{Fuel used by 1st auto}=30 \text{ gallons}$

$\text{Fuel used by 2nd auto}=\frac{\text{ 600 miles}}{\frac{\text{ 30 miles}}{\text{gallon}}}$

$\text{Fuel used by 2nd auto}=\frac{\text{ 600 miles}}{\text{ 30 miles}}\times \text{gallon}$

$\text{Fuel used by 2nd auto}=20 \text{ gallons}$

Let us find the difference of fuel used by both autos.

$\text{Number of gallons that 2nd auto used less than 1st auto}=30-20$

$\text{Number of gallons that 2nd auto used less than 1st auto}=10$

Since one gallon of automobile fuel produces about 5 pounds of carbon, so 10 gallons of fuel will produces $5\times 10=50$ pounds of carbon.

Since 2nd auto used 10 gallons less than 1st auto, therefore, 2nd auto will produce 50 pounds less carbon than 1st auto.

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3 years ago

Joe helped his soccer coach pass out equipment to the 13 players on the team. He gave each player 4 soccer balls and 3 cones. Wh

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He passed out 91 objects. 13 x 4 = 52 + 39 = 3 x 13

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3 years ago

Read 2 more answers

15q - 12 = 18 <br>help me pls

Jet001 [13]

The answer is q=15

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3 years ago

Find the value of 9x + 2 given that -5x-3=2

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$-5x-3 = 2\\-5x=5\\x = -1$

Now plug the x value into 9x + 2

$9(-1)+2) = -7$

Hope that helps!

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2 years ago

Union City Bakery uses a chocolate chip muffin recipe that yields 1/2 cup of milk for every batch of 12 chocolate chip muffins.

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You need 1/24 of a cup to make one muffin you would need one cup of milk to make 24 muffins

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