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Minchanka [31]
2 years ago
6

What is commutative property in rational number ? please explain.

Mathematics
1 answer:
slavikrds [6]2 years ago
4 0

Answer:

Commutative property of addition of rational numbers: Two rational numbers can be added in any order. Thus for any two rational numbers a/b and c/d, we have. (a/b + c/d) = (c/d + a/b)

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If 3(r+300)=6 then find the value of r+300-2
faltersainse [42]

Answer:

0

Step-by-step explanation:

3(r+300)=6

Divide each side by 3

3/3(r+300)=6/3

(r+300)=2

Now we want to find

r+300-2

2 -2

0

8 0
3 years ago
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How many solutions does the following equation have? 4(y-30)=4y+12
kramer

Answer:

there are 2 sullotions of doing this question

Step-by-step explanation:

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3 years ago
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You drive 132 miles in 3 hours. At<br> that speed, how many miles could you drive in 4 hours?
sasho [114]

Answer:

You would divide 132 by 3 to get the unit rate of 44 mph. Then multiply by 4 to get 176 miles in 4 hours

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP ME !!!!!!!!!!!!!!!!!<br>LET ME KNOW IF ITS RIGHT
Savatey [412]
Okay. So the song lasts 221 seconds. 45 seconds have already beem done and 22 seconds is done in an hour. The equation would be set up like this:

45 + 22h = 221

Just by looking at the answer choices, A is already eliminated because it doesn't incorportate the 45 seconds. B does include the 45 seconds, but it subtracts, and in this case, we add time, not subtract. D is eliminated, because the h variable does not go with 45. The only equation that works is C and when you solve it, you get 8 hours. The answer is C.

Note: you solve the equation above by subtract 45 from both sides to get 176 = 22x, and dividing both sides by 22 to get x = 8.
4 0
3 years ago
Angle a and angle b are vertical angles with measue of angle a=x and measure of angle b=5x-80​
Gelneren [198K]

Answer:

we know that

Vertical Angles are the angles opposite each other when two lines cross. They are always congruent to one another

in this problem

∠A and ​ ∠B ​ are vertical angles

so

∠A=∠B ​

we have

∠A=

∠B=

equate angle A and angle B

solve for x

therefore

the answer is

the measure of angle A is

Step-by-step explanation:

Hope it helps:)

Brainliest pls? Have a good day/night

8 0
3 years ago
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