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dmitriy555 [2]
3 years ago
12

The variables x and y are proportional. Use the values to find the constant of proportionality. Then write an equation that rela

tes x and y.
When y=72 and x=3.

K = ?

y = ?
Mathematics
1 answer:
Sidana [21]3 years ago
3 0

Answer:

k = 24, y = 24x

Step-by-step explanation:

Given x and y are proportional then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition when y = 72, x = 3 , then

72 = 3k ( divide both sides by 3 )

k = 24

y = 24x ← equation of proportion

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sasho [114]
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4 0
3 years ago
To ________ a formula or equation for a specified variable means to rearrange it so that the variable appears alone on one side
julia-pushkina [17]
Hello There! ^_^

Your question: To ________ a formula or equation for a specified variable means to rearrange it so that the variable appears alone on one side of the equal sign.

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7 0
4 years ago
Read 2 more answers
Please help! (listing BRAINLIST and giving points) ​ :)​
NikAS [45]

Answer:

Tan B = 12/5

Sin B = 12/13

Cos B = 5/13

Step-by-step explanation:

sine B =  opposite (12)/hypotenuse (13)

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Cosine B = adjacent/hypotenuse

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Tangent B = opposite/adjacent

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3 0
3 years ago
What is the area of a circle with diameter 8cm? Round your answer to the nearest tenth. use pi= 3.14
hodyreva [135]

Answer:

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Step-by-step explanation:

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area \: of \: circle = \pi {r}^{2}  \\  = 3.14 \times  {4}^{2}  \\  = 3.14 \times 16 \\  = 50.24 \:  {cm}^{2}  \\  = 50.2 \:  {cm}^{2}

7 0
4 years ago
Read 2 more answers
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