Questăo 3 Um investimento é realizado em juros compostos a uma taxa de \( 12 \% \) ao ano. Caso seja investido 15000 reais por 2 anos, quanto será obtido em juros neste investimento?

A retail outlet for calculators sells 720 calculators per year. It costs \( \$ 2 \) to store one calculator for a year. To reorder, there is a fixed cost of \( \$ 5 \), plus \( \$ 2.35 \) for each calculator. How many times per year should the store order calculators, and in what lot size, in order to minimize inventory costs?

Think and practise Then, it reduced it by \( 30 \% \) because it wanted to go back to the original price. Let's check if this is correct: a) A computer originally cost \( € 1000 \). How much did it cost at each stage of the process? b) What is the percentage variation in relation 70 to the original price?

1. A metal fabricator purchased four machines to do his work at a total value of \( \$ 20800 \). His stock is valued at \( \$ 4970 \), and cash in hand \( \$ 730 \). He has a debt of \( \$ 6500 \). His capital is:

A capital of \( € 42000 \) is paid into a bank with a \( 5 \% \) annual interest rate. How much money will there be after a year? And after two years? And after three years?

9. Цену на товар снизили на \( 20 \% \), через месяц - еще на \( 10 \% \), после чего товар стал стоить 216 рублей. Какова первона- чальная стоимость товара?