mochi16 mochi16

18-04-2020
Mathematics

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Brenda sewed a total of 784 buttons on 90 dresses. She sewed 8 or 12 buttons on each dress. how many dresses have 12 buttons on it？please help fast

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salatulmaghrib salatulmaghrib

18-04-2020

The answer is 16
.
12x + 8(90-x) = 784
12x + 720 - 8x = 784
4x = 64
x = 16

16 dresses have 12 buttons

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