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3 years ago

Is -56,912 a irrational or rational number

Mathematics

1 answer:

kow [346]3 years ago

7 0

I believe it's a rational number, since it's an integer.

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Find the value of d. 1/2d - 5 -1/4d = 10

Ksenya-84 [330]

D=60. multiply both sides of the equation by 4 since it’s a factor, giving you 2d-20-d=40. since there are like terms with d, collect them to get d-20=40 and move 20 to the right and change it’s sign. that will give you d=40+20, then calculate to get d=60. hope this helped! :)

6 0

3 years ago

How many three-digit phone prefixes that are used to represent a particular geographic area are possible that have no 0 or 1 in

Sonbull [250]

Answer:

The number of possible three-digit phone prefixes that are used to represent a particular geographic area is 640.

Step-by-step explanation:

The phone prefixes used to represent a particular geographic area are a 3 digit code consisting of numbers from 0 to 9.

The prefix code are of the form: x x x

Condition: The first or the second place cannot take values 0 or 1.

Then the first place can be occupied by the remaining 8 digits.

Similarly the second place can also be occupied by the remaining 8 digits.

And the third place can be occupied by any of the 10 digits.

So the number of ways to construct a phone prefix for any area is:

$Possible\ number\ of\ phone\ prefixes=8\times8\times10=640$

Thus, the number of phone prefixes possible for any area is 640.

4 0

4 years ago

Q15. Ken earned x dollars at his part-time job on Friday. His wife earned $12 more

Vladimir79 [104]

Answer: Ken Earned 81$

Step-by-step explanation: Subtract 12 from the total, then divide by 2 because his wife earns double than him, plus 12$ more.

Have a good day :)

3 0

2 years ago

What is 6 divided by a number that will give you 12

AURORKA [14]

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$Hello$ $There!$

We need to find what number, if 6 is divided by it, gives us 12.

This isn't hard, I promise! I am going to take you through a few steps, and we'll find the answer.

Are you ready? Then let's begin...:)

$Procedure:$

✦ We can think about it as: 6 divided by what number gives us 12?

(let the number be z)

$^6/_z=12$

Multiply both sides by z

$6=12z$

Divide both sides by z

$z=^6/_{12}$

Which is the same as

$z=^1/_2$

hope it's helpful!
wishing you a great day!

$Greetings!$

6 0

2 years ago

Please I need help asap

jasenka [17]

Answer:

Option D - x = 3 3/5

Step-by-step explanation:

Lets make the left side into an improper fraction :

2 2/5 = 12/5

Now let's make both fraction into equivalent ones but with the same denominator :

2/3 = 10/15

12/5 = 36/15

Now we substitute the equivalent values back into the equation :

10/15 × x = 36/15

Now we multiply both sides by 15 to remove the denominators:

10 × x = 36

Now we divide both sides by 10 and simplify :

x = 36/10

x = 18/5

x = 3 3/5

So our answer will be Option D

Hope this helped and brainliest please

7 0

2 years ago