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question:Sandra wants to buy some sweets. She saved 10 for this purpose. Her mother gave her an additional 4, and her father twice as much as her mother. One candy costs 0.5, and one jelly bean 0.2. She wants to buy 14 candies and 20 jelly beans. How much money will she be left with after the purchase?
answer:Sandra saved 10 and her mother gave her 4, so she has a total of 10 + 4 = 14. Her father gave her twice as much as her mother, so he gave her 4 x 2 = 8. In total, Sandra has 14 + 8 = 22 to spend on sweets. One candy costs 0.5 and she wants to buy 14 candies, so she will spend 0.5 x 14 = 7 on candies. One jelly bean costs 0.2 and she wants to buy 20 jelly beans, so she will spend 0.2 x 20 = 4 on jelly beans. In total, she will spend 7 + 4 = 11 on sweets. After the purchase, she will be left with 22 - 11 = 11. Therefore, Sandra will be left with 11 after the purchase. 11 The answer is: 11
question:Suppose that wz = 12-8i, and |w| = sqrt{13}. What is |z|?
answer:We have |wz| = |w|cdot |z|, so |wz| = sqrt{13} cdot |z|. On the other hand, |wz| = |12-8i| = sqrt{12^2 + (-8)^2} = sqrt{144 + 64} = sqrt{208}. Setting the two expressions for |wz| equal, we have sqrt{208} = sqrt{13} cdot |z|. Dividing both sides by sqrt{13}, we get |z| = boxed{sqrt{16}} = boxed{4}. The answer is: 4
question:Gage skated 1 hr 15 min each day for 5 days and 1 hr 30 min each day for 3 days. How many minutes would he have to skate the ninth day in order to average 85 minutes of skating each day for the entire time?
answer:To average 85 minutes of skating each day for the entire time, Gage would need to skate a total of 85 times 9 = 765 minutes over the 9 days. He has already skated a total of 1 text{ hr 15 min} times 5 + 1 text{ hr 30 min} times 3 = 375 + 270 = 645 minutes over the first 8 days. Therefore, he would need to skate 765 - 645 = boxed{120} minutes on the ninth day to reach the average of 85 minutes per day. The answer is: 120
question:A show debut and 200 people buy tickets. For the second showing three times as many people show up. The show made 20000 if each ticket cost x. What is the value of unknown variable x?
answer:To solve this problem, we need to determine the value of x, which represents the cost of each ticket. Let's break down the information given: Number of people for the first showing: 200 Number of people for the second showing: 3 * 200 = 600 Total number of people: 200 + 600 = 800 Total revenue from ticket sales: 20,000 We can set up the equation as follows: Number of people * Cost per ticket = Total revenue 800 * x = 20,000 Let's simplify and solve for x: 800x = 20,000 To isolate x, we divide both sides of the equation by 800: 800x / 800 = 20,000 / 800 x = 25 The value of x is 25. 25 The answer is: 25