Lời Giải
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A number is six times another number. Their sum is 28. What are the numbers?A person invests 9500 dollars in a bank. The bank pays 5.75% interest compounded annually. To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 22600 dollars?Prompted when I was 6 years old my sister was half of my age, and my mother was 10:times older than my sister. Now I'm 60. How old is my mother now?Maggie has 30 in an account. The interest rate is 10% compounded annually.To the nearest cent, how much will she have in 1 year?Ian invested 90,000 in an account paying an interest rate of 2.6% compounded quarterly. Assuming no deposits or withdrawals are made, how much money, to the nearest dollar, would be in the account after 7 years?