Questions by olebsack - Page 10

Josiah kept track of how many songs of each genre were played in an hour from his MP3 player. The counts are displayed in the table below. He has a total of 1,500 songs on his player. Josiah predicted the number of rock songs on his MP3 player to be 300 songs. Which statements about his solution are true? Select three choices. Josiahs Music Sample 1 Sample 2 R & B 5 R & B 4 Pop 4 Pop 3 Classical 3 Classical 5 Jazz 2 Jazz 4 Rock 6 Rock 4 Josiahs work: StartFraction 10 over 20 EndFraction = StartFraction x over 1,500 EndFraction. StartFraction 10 times 30 over 20 times 30 EndFraction = StartFraction x over 1,500 EndFraction. 300 = x. He should have found the average of the number of rock songs by averaging 4 and 6 to get 5. He did not multiply the numerator and denominator by the correct number to equal 1,500. His answer will be one-half of what he got because he did not divide 10 by 2 when setting up the proportion. He can only solve the proportion by multiplying the numerator and denominator by a common multiple. He should have multiplied the numerator and denominator by 75, not 30, because 20 times 75 = 1,500.
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Evaluate each geometric series described. 2 - 6 + 18 54.... n=17
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Scaled copys of the pic
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How many cubic feet of warehouse space are needed for 440 boxes 13in. by 4in. by 10in. ?
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How is a karyotype arranged?
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1. What is slope-intercept form?1.2. What is standard form?2.Given the following information, write the linear equation in slope-intercept form,3. slope = 1/3; y-intercept = -1 4. slope =-2/5; y-intercept = 0 5. slope = -1; y-intercept = 4Convert the following from standard form to slope-intercept form.6. 6x + 3y = 67.X + 2y = 48. x + y = -39.-2x + 3y = -610. 2x + y = -111. 5x - 2y = 1412. 5x - y = -513. 4x + 3y = 1214. 2x - 4y = 815. x + 3y = -3
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selective serotonin reuptake inhibitors are frequently prescribed for the treatment of
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What percent of 174 is 562 Round to the nearest tenth, ifnecessary.
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Find any solution(s) of 3a+2+4a1=0.
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help me homework!!! please!!
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Why dont crystals have cells.
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HELP PLEASE 30 IF YOU HELP
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please help im on a time limit!
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what to do if I have crush on someone
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What is the area?1 square yard2 square yards3 square yards
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Tanya says that the product of a multiple of ten and a multiple of ten will always have only one zero. Is she correct? Complete the explanation.
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The interdisciplinary team is evaluating an older adult who has been financially abused. which factor causes the team to re-evaluate the effectiveness of the care plan
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Pls help!!! i only have 5 hours to do thispart clarge patches of color indicate widespread precipitation. over which areas does precipitation seem to be the most widespread?part dprecipitation that appears as a line indicates a weather front. can you locate an obvious front? if so, where is it located? which direction is the front moving?
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What is the least common dominator of 4/13 and 4/5?
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In informative speaking, it is better to briefly present five items as a quick overview than to presenttwo items and spend time explaining them in depth with examples, illustrations, and descriptions?
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1. A triangle, DEF, is given. Describe the construction of a circle with center C circumscribed about the triangle. (3-5 sentences)2. O and P are given with centers (2, 7) and (12, 1) and radii of lengths 5 and 12, respectively. Using similarity transformations on O, prove that O and P are similar
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Mr. Myrna can't understand why lecturing and scolding his freshmen students for disruptive classroom behaviors makes them even more unruly. Explain Mr. Myrna's predicament in terms of operant conditioning principles. Show how he could use operant conditioning techniques to (a) reduce disruptive behaviors and (b) increase cooperative behaviors.
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A marketing researcher for a phone company surveys 100 people and finds that that proportion of clients who are likely to switch providers when their contract expires is 0. 15. A. What is the standard deviation of the sampling distribution of the proportion? B. What is the probability that the sample proportion is between 0. 30 and 0. 40?
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A uniform plank AB of mass 20kg is supported horizontally at 20cm and 70cm marks from A the plank is in equilibrium when massese 50kg and 70kg are suspended at A and B respectively and the weight of 100N is suspended at the 40cm Mark from B
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