4. Find the value of the constant of variation if y varies jointly as b and c, a...

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4. Find the value of the constant of variation if y varies jointly as b and c, and y = 256 when b = 8 and c = 4 .

A. 2

B. 4

C. 6

D. 8

AGboii

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$\large{\mathcal{QUESTION:}}$

4. Find the value of the constant of variation if y varies jointly as b and c, and y = 256 when b = 8 and c = 4 .

A. 2
B. 4
C. 6
D. 8

$\\$

$\large{\mathcal{SOLUTION:}}$

Equation: y = kbc

Given: y = 256 , b = 8 , c = 4

y = kbc
256 = k(8)(4)
256 = 32k
256 ÷ 32 = k
8 = k

Therefore , the constant value is 8

$\\$

$\large{\mathcal{ANSWER:}}$

LETTER D (8)

$\\$

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$\huge\colorbox{red}{QUESTION}$

4. Find the value of the constant of variation if y varies jointly as b and c, and y = 256 when b = 8 and c = 4 .

$\huge\colorbox{red}{ANSWER}$

D. 8

$\huge\colorbox{red}{SOLUTION}$

Equation: y = kbc

Given: y = 256 , b = 8 , c = 4

y = kbc
256 = k(8)(4)
256 = 32k
256 ÷ 32 = k
8 = k

Therefore , the constant value is 8

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