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Mathematics, 21.06.2019 14:30
The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.
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Mathematics, 22.06.2019 08:30
The snowstorm lasted a total of 9hours it snowed at a rate of 1 inch per hour during the first 2 hours the snow continued for the next 6 hours falling at a rate of 2 inches per hour,and finally reduced to 1 inch per hour for the last hour
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Mathematics, 22.06.2019 09:00
Each month, a phone company charges $20 for 500 minutes of talk time plus $0.45 for each additional minute. unlimited texting costs $30 more. choose an expression to show the cost of a talk-and-texting plan for one month, given x minutes over 500.
Answers: 2
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