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xenn [34]
3 years ago
8

Suppose that y varies inversely with x. Use the information to find k, and then choose the equation of variation. X=2 when y=2

Mathematics
1 answer:
Vlad1618 [11]3 years ago
7 0

Answer:

see explanation

Step-by-step explanation:

Given that y varies inversely as x then the equation relating them is

y = \frac{k}{x} ← k is the constant of variation

To find k use the condition

x = 2 when y = 2

k = yx = 2 × 2 = 4, hence

y = \frac{4}{x} ← equation of variation

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horrorfan [7]

Answer:

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Step-by-step explanation:

To find the area of a circle, use the formula A = πr² by substituting r = 10.

A = πr² = π10² = 314 cm²

8 0
3 years ago
What is the equivalent to (3x squared)cubed ?
Amiraneli [1.4K]
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4 0
3 years ago
Emily and Molly are selling pies for a school fundraiser. Customers can buy cherry pies and lemon pies. Emily sold 4 cherry pies
Natalka [10]

Answer:

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Step-by-step explanation:

Step one:

let cherry be x

and lemon be y

the systems of the equation for the solution is given as

4x+y=30-----------1

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Step two:

solve the equation simultaneously by substitution we have

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put y=30-4x in equation 2

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-16x=-80

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x=5

put x=4 in y=30-4x

y=30-4(5).

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5 0
3 years ago
To buy a car, Danny borrowed $16000 for 3 years at an annual simple interest rate of 9%. if it takes him 3 full years to pay off
Marat540 [252]

Answer:

$4,320

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
9-3x is greater than or equal to 2(x-3)
Bumek [7]
Greater than

2 times x = 2x
2 times 3 = 6
9-3x > 2x-6
4 0
2 years ago
Read 2 more answers
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