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3 years ago

All properties of math

Mathematics

2 answers:

Romashka [77]3 years ago

6 0

Answer:

There are four mathematical properties which involve addition. The properties are the commutative, associative, identity and distributive properties.

Step-by-step explanation:

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

Associative Property: When three or more numbers are added, the sum is the same regardless of the grouping of the addends.

Identity Property: The sum of any number and zero is the original number.

Distributive Property: The sum of two numbers times a third number is equal to the sum of each addend times the third number.

Hope this helps :)

Vaselesa [24]3 years ago

3 0

Answer:commutative, associative, additive identity and distributive property

Step-by-step explanation:

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Twice the difference of a number and seven is equal to three times the sum of the number and seven

Nana76 [90]

2(n-7) = 3(n+7)
2n-14 = 3n + 21
-35 = n (answer)

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3 years ago

In order to select ne board members the french club heald a election 3 members voted in the election. And 7 did not vote what pe

igor_vitrenko [27]

Answer:

30% members have voted.

Step-by-step explanation:

Given:

Number of members voted = 3

Number of members didn't vote = 7

We need to find what percentage of people voted.

Solution:

First we will find the total number of members in the election.

Now we can say that;

The total number of members in the election is equal to sum of Number of members voted and Number of members didn't vote.

framing in equation form we get;

The total number of members in the election = $7+3=10$

Now we will find the percentage of people voted.

So we can say that;

Percentage of members voted can be calculated by dividing Number of members voted from The total number of members in the election and then multiplying by 100 we get;

Percentage of members voted = $\frac{3}{10}\times100 = 30\%$

Hence 30% members have voted.

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3 years ago

Bruce drove 25 km and his car used 4 L of gas. How many km can Bruce drive with 30 L of gas? Round your answer to the nearest km

Rudik [331]

Answer:

188km

Hi there!!

I hope this answer helps.

Step-by-step explanation:

You can solve this with simple cross multiplication. (proportion)

Step-by-step explanation:

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3 years ago

What is the equation of a line parallel to y=(3)/(4)x-5 and passes through (12,-2)?

Vika [28.1K]

A parallel line has the same slope as the original line. So in this case the slope of the line is also 3/4. Now how do we know if it intersects the point? We need to adjust the y intercept.

Currently, we know the equation of the line is y= 3/4 x + b, where b is the thing we are looking for. We also have a point, which supplies the x and y. Plug that in and solve for b

-2 = (3/4)*(12) + b

You'll get b= -11

So the equation of the parallel line intersecting the point given is y= 3/4x -11.

I am assuming that the slope is 3/4 based on the way you formatted the original equation, but it's the same steps if the slope is different.

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2 years ago

What is the value of t in this equation?<br> 3t=t+3

Lera25 [3.4K]

$3t=t+3\\
2t=3\\
t=\dfrac{3}{2}$

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3 years ago