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Miranda and Valerie wanted to buy a new blender. Miranda got a blender at a 15% discount and paid $1785 for the blender. Valerie paid for the same blender at $1680. How many percent discount did Valerie get?

Question

Miranda and Valerie wanted to buy a new blender. Miranda got a blender at a 15% discount and paid 1785fortheblender.Valeriepaidforthesameblenderat1785 for the blender. Valerie paid for the same blender at 1680. How many percent discount did Valerie get?

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Solution

Primero, determinemos el precio original del blender que compró Miranda. Sabemos que ella pagó $1785 después de un descuento del 15%.

  1. Representemos el precio original del blender como P P .
  2. El precio después del descuento es P0.15P=0.85P P - 0.15P = 0.85P .
  3. Sabemos que 0.85P=1785 0.85P = 1785 .

Para encontrar P P :

P=17850.85 P = \frac{1785}{0.85}

P=2100 P = 2100

Entonces, el precio original del blender es $2100.

Ahora, determinemos el porcentaje de descuento que obtuvo Valerie. Sabemos que ella pagó 1680porelmismoblendercuyopreciooriginales1680 por el mismo blender cuyo precio original es 2100.

  1. El descuento que obtuvo Valerie es 21001680=420 2100 - 1680 = 420 .
  2. Para encontrar el porcentaje de descuento, usamos la fórmula:

Porcentaje de descuento=(DescuentoPrecio original)×100 \text{Porcentaje de descuento} = \left( \frac{\text{Descuento}}{\text{Precio original}} \right) \times 100

Porcentaje de descuento=(4202100)×100 \text{Porcentaje de descuento} = \left( \frac{420}{2100} \right) \times 100

Porcentaje de descuento=0.2×100 \text{Porcentaje de descuento} = 0.2 \times 100

Porcentaje de descuento=20% \text{Porcentaje de descuento} = 20\%

Por lo tanto, Valerie obtuvo un descuento del 20%.

This problem has been solved

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