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mr Goodwill [35]
3 years ago
12

If y = kx, what is the value of k if y = 20 and x = 0.4?

Mathematics
1 answer:
True [87]3 years ago
8 0
Set up an equation 20=k(0.4)....to find k divide 20 by 0.4
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Answer:

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Step-by-step explanation:

Given that:

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Let,

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This will form a right angled triangle where the diagonal will be hypotenuse.

Using Pythagorean theorem;

(25)^2+(w)^2 = (29)^2\\625+w^2=841\\w^2= 841 - 625\\w^2 = 216

Taking square root on both sides

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Rounding off to nearest whole number

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