barstr9146
18.02.2021 •
Health
8- Resolva os seguintes problemas:
a) Se eu multiplicar o meu salário atual por 1,64 saberei quanto vou ganhar após o próximo
aumento. Sabendo que ganho atualmente R$ 900,00, qual
será o meu salário após o aumento?
b) Um pacote de arroz de 5 kg custa R$ 20,85. Qual o preço de 1 kg de arroz?
C) Débora comprou 4 pasteis a R$ 2,50 cada e 4 refrigerantes a R$ 1,80 cada um. Pagou com
uma nota de R$ 20,00. Quanto recebeu de troco?
Durante o ano João guardou todas as moedas que sobravam da compra do lanche. Guardou
15 moedas de R$1,00, 22 moedas de R$0,50, 32 moedas de R$ 0,25, 25 moedas de R$0,10 e 10
moedas de R$ 0,05. Calcule o total economizado por João.
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