the cost of the fabric is $1.31. what would you expect to pay for a similar piece of fabric that is 18 inches by 42 inches?

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17-11-2017
Mathematics

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the cost of the fabric is $1.31. what would you expect to pay for a similar piece of fabric that is 18 inches by 42 inches?

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ankastre ankastre · Answer 1 · 2017-11-17T06:52:42+01:00

ankastre ankastre

17-11-2017

Calculate areas for 2 rectangles;

21*9= 189

18*42= 756

make an equation with data you have;

If 189 cost $1.31

756 cost $x
_____________

756 *1.31 / 189 = $5.24 cost for second fabric

Second way;

(18x42) / (21x9) = 4 x 1.31 = $5.24

Which ever you find easer

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