5 Answered Questions for the topic Tutoring Tips

#### math question

an = (-1)^n/5n+4, n=1,2,3 . . .
(the n is supposed to go under the a but i don't know how to put it that way through typing)

#### Suppose that $2000 is loaned at a rate of 11%, compounded semiannually. Assuming that no payments are made, find the amount owed after 5 years.

Do not round any intermediate computations, and round your answer to the nearest cent.

#### A city has a population of 370,000 people. Suppose that each year the population grows by 6.75%. What will the population be after 12 years?

thank you so much for your help

#### A chemical company makes two brands of antifreeze. The first brand is 20% pure antifreeze and the second brand is 70% pure antifreeze. In order to obtain 180 -

gallons of a mixture that contains 40% pure antifreeze, how many gallons of each brand of antifreeze must be used?

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