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iren2701 [21]
3 years ago
6

The sum of the measures of two complementary angles exceeds the difference of their measures by 72°. Find the measure

Mathematics
1 answer:
Zanzabum3 years ago
4 0

Answer:

36 degrees

Step-by-step explanation:

A+B=90

A-B=18

add these two equations:

2A = 108

A=54

B=36

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Adrián compró una bicicleta cuyo precio original es de 400.00 pesos pero al pagar en la caja le hicieron 20% de descuento cuánto
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Answer:

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Step-by-step explanation:

Un 20% de descuento en formato decimal es 0.20. La totalidad de la bicicleta es representada como 100% o 1 y nosotros queremos saber el precio despues del descuento que seria

100% - 20% = 80% o 0.80

Ahora simplemente multiplicamos este decimal por el valor original de la bicicleta para saber el precio descontado...

400 * 0.80 = 320 pesos

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