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tensa zangetsu [6.8K]
3 years ago
12

On a rectangle hyperbola, if one point is (2,3) and y varies inversely to x, find y when x is 6

Mathematics
1 answer:
s344n2d4d5 [400]3 years ago
4 0
<span>The graph of y against x in inverse proportion is a rectangular hyperbola but I don't see at all how this knowledge/observation is any help in solving the problem.

Inverse proportion means that as x doubles y will halve and the equation is xy = k where k is some number. A good example of inverse proportion is speed and time taken over some fixed distance. In this case x could represent the speed (mph) and y the time (h) and then k is the distance in miles.

Since we know y=3 when x=2 we have xy = 6. Now it's easy to see when x=6 y=1.</span>
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This is for 20 points!!!!!!!
3241004551 [841]

All really need to do is pick one number. so, we will go with 6 and 87.

6 times 12 is 72 then you subtract that from $87.

That would be 15

To double check, you can use another one. 9 and 123.

9 times 12 is 108. subtract that from 123 and you get 15.

Your answer is B) $15

Hope I helped :)

4 0
3 years ago
1. If a bicycle wheel has a diameter of 15 in. How far will the wheel rotate in 10 rotations?​
WARRIOR [948]

Answer:

150 pi inches or 471.239 inches traveled

Step-by-step explanation:

First, close your eyes, and think about the distance a bike travels after one rotation of the wheel.

You will come to the realization that a full rotation of the wheel makes you travel the circumference of the wheel

The formula for circumference is 2(pi)(r) or (pi)(diameter)

We are given diameter, so let's find distance traveled for one rotation

pi(15 inches) = 15pi inches per rotation.

There are 10 rotations, so:

(15pi inches/rotation)(10 rotations) = 150pi inches travelled

150 x pi = 471.239 inches traveled

4 0
3 years ago
Ed is on a road trip. He has already traveled 229 miles and is driving at a rate of 68 miles per hour. Which equation could be u
Bogdan [553]

Step-by-step explanation:

THE ANSWER IS D BUT ME 8S NOT SURE

8 0
2 years ago
Round each number to the nearest 10 and 100. 734,102,483
11111nata11111 [884]
734: 730 and 700.

102: 100 and 100.

483: 480 and 500.

There you go! ^w^
8 0
3 years ago
If the sum of two prime numbers is 999 what is their product
abruzzese [7]
999.999 because if one is 99 the other would make it 9999
7 0
3 years ago
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