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MARTINEZRICARDA07200IN
Answered

the cost C varies directly as the number of kilos of rice n ,and C is 45 when n = 2. find the following : the value of k and the value of n when C = 135 /2.​

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RAMOS136497160148IN

Answer:

k = 45/2 and n = 3

Step-by-step explanation:

cost C varies directly as the number of kilos of rice n

C = kn where k is the constant of variation

if C = 45 and n = 2

C = kn

45 = k ( 2 )

k = 45/2

if C = 135/2, find n.

C = kn

135/2 = (45/2) ( n )

n = (135/2) / (45/2)

n = (135/2) * (2/45)

n = (135)(2) / (2)(45)

n = 3

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