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3 years ago

A silk ribbon costs $5.60 for 0.8m. Find the constant of variation.

Mathematics

1 answer:

Minchanka [31]3 years ago

6 0

Answer: The constant of variation value of 7.

Step-by-step explanation: We are given cost of 0.8 meter of a silk ribbon = $5.60.

Let us assume y be the total cost for x meter of a silk ribbon and k is the constant of variation.

So, we can set up an equation for proportion relationship:

y = k x.

<em>Let us plug x=0.8 and y= 5.60,</em> in above proportion relationship equation, we get

5.60 = k (0.8).

Dividing both sides by 0.8, we get

5.60/0.8 = k(0.8)/0.8

k =7.

Therefore, the constant of variation value of 7.

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