Mathematics, 20.10.2020 22:01, bran1974

What vocabulary words can you use to describe 36 and 27?

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Mathematics, 21.06.2019 15:30, Jasten

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

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Mathematics, 21.06.2019 18:00, sophiamoser

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

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Mathematics, 21.06.2019 21:30, LEXIEXO

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.

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Mathematics, 21.06.2019 21:40, oprajapati

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?