Question

Me ajudem por favor! Se ñ sabe
ñ responda. E responda tudo!

Answer 1

(1) LETRA (D)

$28000 \: -- - - \: 100\%$

$x \: ---- \: 83\%$

$100.x = 83.28000$

$100x = 2324000$

$x = \frac{2324000}{100}$

$x = 23240,00$

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(2) LETRA (A)

$87,80 \: ---- \: 100\%$

$x \: ---- \: 25\%$

$100.x = 25.87,80$

$100x = 2195$

$x = \frac{2195}{100}$

$x = 21,95$

Então,

$87,80 - 21,95 = 65,85$

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(1) LETRA (C)

$899,00 \: -- - - \: 100\%$

$x \: ---- \: 18\%$

$100.x = 18.899,00$

$100x = 16182$

$x = \frac{16182}{100}$

$x = 161,82$

Então,

$899,00 \: - \: 161,82 = 737,18$

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(2) LETRA (C)

$150,00 \: -- - - \: 100\%$

$x \: ---- \: 40\%$

$100.x = 40.150,00$

$100x = 6000$

$x = \frac{6000}{100}$

$x = 60$

Então,

$150,00 - 60,00 = 90,00$