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Rus_ich [418]
3 years ago
7

THIS IS URGENT

Mathematics
1 answer:
german3 years ago
3 0
Ok do the original price minus the new price. 90-55=35. Divide that by the original number and multiply it by 100 to find the price decrease. 35/90=.3888*100=38.89
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The complete question in the attached figure

we have that
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sin(a + b) = sin(a)cos(b) + cos(a)sin(b<span>)
</span>
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