Achemical company makes two brands of antifreeze. the first brand is 40% pure antifreeze, and the second brand is 65% pure antifreeze. in order to obtain 150 gallons of a mixture that contains 45% pure antifreeze, how many gallons of each brand of antifreeze must be used ?
first brand: ? gallons
second brand: ? gallons

Astudent survey asked: "how tall are you (in inches)? " here's the data: 67, 72, 73, 60, 65, 86, 72, 69, 74 give the five number summary. a. median: 73, mean: 70.89, iqr: 5, min: 60, max: 74 b. 60, 66, 72, 73.5, 86 c. 60, 67, 72, 73, 74 d. 0, 60, 70, 89, 74, 100

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?

Tom is the deli manager at a grocery store. he needs to schedule employee to staff the deli department for no more that 260 person-hours per week. tom has one part-time employee who works 20 person-hours per week. each full-time employee works 40 person-hours per week. write and inequality to determine n, the number of full-time employees tom may schedule, so that his employees work on more than 260 person-hours per week. graph the solution set to this inequality.