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weqwewe [10]
3 years ago
7

Uma loja de equipamentos eletrônicos anunciou um celular com duas opções de venda. Na primeira opção, o pagamento pode ser feito

em cinco parcelas iguais. Na segunda opção, o pagamento pode ser feito em oito parcelas iguais. Se o consumidor escolher a primeira opção, cada prestação custará R$ 30,00 a mais que cada parcela da segunda opção. Qual é o preço desse celular?
Mathematics
1 answer:
Lena [83]3 years ago
3 0

Responda:

Preço = $ 400

Explicação passo a passo:

Dado que:

Primeira opção :

Pagamento em 5 investimento igual

Segunda opçao :

Pagamento feito em 8 iguais. Investimento

O preço por parcela do primeiro investimento é 30 a mais do que cada um do segundo

Deixe o preço do telefone = p

Valor por prestação = x

Segunda parcela:

Preço = 8x

Primeiro :

Valor por parcela = x + 30

P = 5 (x + 30)

Preço = 5x + 150

Portanto, igualando as duas equações:

8x = 5x + 150

8x - 3x = 150

5x = 150

x = $ 50

Usando qualquer das equações de preço:

Preço = 8x

Preço = 8 * 50

Preço do telefone = $ 400

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