Mathematics, 08.11.2020 01:00 serenityparish
Claire went into a movie theater and bought 9 bags of popcorn and 2 pretzels, costing a total of $80. Melanie went into the same movie theater and bought 7 bags of popcorn and 4 pretzels, costing a total of $72. Write a system of equations that could be used to determine the price of each bag of popcorn and the price of each pretzel. Define the variables that you use to write the system.
Answers: 1
Mathematics, 22.06.2019 03:30
More challenges: 1) factor out the indicated quantity.8mnĀ² + 7mn - m : factor out the quantity -m2) factor the polynomial by grouping.2vw + 7cv + 14cw + 49cĀ²3) factor completely using the difference of squares along with factoring by grouping.25vĀ³ - 25vĀ² - 4v + 44) factor the sum of cubes. 125xĀ³ + 645) qĀ³ + 27rĀ³6) factor completely. use difference of squares.729p^6 - 6^67) solve the equation(7x + 4)(9x - 1) = 08) a. find the values of x for which f (x) = 0b. find f (0)f (x) = xĀ² + 2x - 489) find the x and y-intercepts for the function defined by y = f (x)f (x) = (x + 3)(x + 4)(x - 1)Ā²10) factor the trinomial completely by using any method. remember to look for a common factor first. 3vĀ² - 2v - 16
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Mathematics, 22.06.2019 04:00
Write a function rule for āthe output is 5 less than the input.ā let xx be the input and let yy be the output.
Answers: 3
Mathematics, 22.06.2019 04:30
Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year?
Answers: 2
Mathematics, 22.06.2019 06:00
Use the sample data and confidence level given below to complete parts a through d.a research institute poll asked respondents if they felt vulnerable to identity theft. in the poll, n=1090 and x=549 who said yes. use a 99% confidecne level.a. find the best point of estimate of the population of portion p.b. identify the value of the margin of error e.e= round to four decimal places as needed.c. construct the confidence interval._ < p < _ round to three decimal places.d. write a statement that correctly interprets the confidence interval.
Answers: 3
Claire went into a movie theater and bought 9 bags of popcorn and 2 pretzels, costing a total of $80...
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