What's the reciprocal of 7/9? a.48/15 b.16/15 c.9/7 d.14/18 ?

Answers

Answer 1

Answer: The reciprocal of a/b is b/a

The reciprocal of 7/9 is 9/7

If you are given a mixed number like 1 2/3, then first convert it to an improper fraction using:
$a (b)/(c) = ((a* c) + b)/(c)$

And then you find the reciprocal of it.

Your answer is C. 9/7.

Answer 2

Answer: 9/7 is the reciprocal of 7/9

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Find the distance between the points 6 + 5i and 1 – 2i.

Answers

For edgeunity students it’s approximately 8.6

This didnt get answered so Ill answer it. Its simple.

The distance between 6 and 1 is going to be 5. (or in some cases, -5)

The distance between +5i and -2i is going to be 7i (or in some cases, -7i)

So depending on how the problem defines the distance, it is either 5 + 7i or -5 - 7i

Pablo, Sofia, and Mia got some candy eggs at a party. Pablo had three times as many eggs as Sofia, and Sofia had twice as many eggs as Mia. Pablo decides to give some of his eggs to Sofia and Mia so that all three will have the same number of eggs. What fraction of his eggs should Pablo give to Sofia?

Answers

Pablo : 3(2x) = 6x
Sofia : 2x
Mia : x

Assuming x = 10
Mia : x = 10
Sofia : 2x = 2(10) = 20
Pablo : 3(2x) = 3(20) = 60

10 + 20 + 60 = 90
90/3 = 30 candy eggs per person

Pablo: 60 x 1/2 = 30
Sophia: 30-20 = 10 : 10
Mia : 30 - 10 = 20 : 20

Ratio of eggs given to sophia from pablo's set = 10/60 = 1/6
Ratio of eggs given to mia from pablo's set = 20/60 = 2/6 = 1/3

The difference between two integers x and -12 is -15. Find the value(s) of x.

Answers

Answer:

x = 3

Step-by-step explanation:

-12–x = -15

15 - 12 = x

x = 3

Please solve the following quadratic equation and show your work: x^2 -x =30

Answers

Rewriting the equation as a quadratic equation equal to zero:
x^2 - x - 30 = 0
We need two numbers whose sum is -1 and whose product is -30. In this case, it would have to be 5 and -6. Therefore we can also write our equation in the factored form
(x + 5)(x - 6) = 0
Now we have a product of two expressions that is equal to zero, which means any x value that makes either (x + 5) or (x - 6) zero will make their product zero.
x + 5 = 0 => x = -5
x - 6 = 0 => x = 6
Therefore, our solutions are x = -5 and x = 6.

Suppose three out of every five people said they would prefer a television over a computer. If we surveyed 5,000 people, how many would prefer a television?

Answers

3,000 people because 3/5 is 0.6, so all you have to do is multiply 5,000 by 0.6 to get 3,000. Also, 3000/5000 is like 3/5, just with more zeros. Hope I helped!

Answer:

3,000 is your answer

Step-by-step explanation:

so you set it up: 3/5 = x/5000

5(x)= (3)(5000)

3 X 5,000 = 15000

15000 = 5x

divide each side by 5, 5x and 5 cancel out and (15000 /5 =3,000) that will leave you with an answer of 3,000

If it takes 16 faucets 10 hours to ﬁll 8 tubs, how long will it take 12 faucets to ﬁll 9 tubs?

Answers

workers.time/jobs = 16.10/8 = 20 then you must do the same for the other one. 12.t/9 = 20
Multiply both sides by 9
12T= =180 then divide both sides by 12
T= 15 hours

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