(Probably should look at the photo instead of the writing btw) A firm making fertiliser produces a new fertiliser QuickGrow. Each 50kg bag of QuickGrow contains x kg of compound X and (50-x)kg of compound Y. Each kilogram of X contains 150g of a particular element and each kilogram of Y contains 80g of this element. The company wants each 50kg of QuickGrow to contain 6.24kg of this element

(Look at the picture for a and b)

25

step-by-step explanation:

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step-by-step explanation:

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step-by-step explanation:

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option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have