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ogbobbythman6154
10.12.2020 •
Mathematics
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?
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Ответ:
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
Ответ: