KS My library > MTH/215T: Quantitative Reasoning I home > 3.3: Ratios2) An adult soccer league requires a ratio of at least 2 women per 7 menon the roster. If 11 men are on the roster, how many women areneeded? Round up.CheckShow answer3) U.S. cities hire about 17 police officers per 10,000 residents, for a17/10,000 ratio. A new police chief for a city of 35,000 residentswants to match that ratio. How many police officers are needed?CheckShow answerRatios and fractionsRatios and fractions are not the same thing. A fraction is a single quantity thatcompares two quantities, like 1 adult per 4 babies. The reason ratios and fractiprocedures, like expanding and reducing, ratios and fractions behave the sameRatios are spoken differently than fractions, usually saying "one to four", in conneed to know the context of 1/4 to know how to speak 1/4: If referring to staff!one to four" But if referring to the amount of pizza remaining (a fraction), a neacer

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Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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In the survey of Americans who play various instruments, 88 million play piano, 60 million play guitar, 24 million play organ, 8 million play clarinet, 6 million play drums, and 4 million play violin. Write each ratio as a fraction in LOWEST TERMS. What is the ratio of piano and violin players to guitar and drum players?
A medical researcher randomly assigns 100 high-risk heart patients into two groups. One group will get open heart surgery and the other group will get a transcatheter aortic valve replacement. She will compare the two groups to see how long they live after their procedures. What is the entity? a. the patients b. how long the patients live after their procedures c. ratio scale of measurement d. the heart procedure e. the hospital
You can make grape juice by mixing 1 can of frozen grape juice concentrate with 3 cans of water. a. Make a ratio table that shows at least four other mixtures of grape juice concentrate and water in the same ratio. At least two of your mixtures should involve numbers that are not whole numbers. b. Explain how to interpret your table in part (a) from the multiple-batches perspective using a double (or triple) number line. c. Explain how to interpret your table from the variable-parts perspective using a strip diagram.
72.5% of the students at Sarasota Community College are from in-state. If 27,950 students are from in-state, how many students attend the college? (Round to the nearest whole number) O 386 O 20,264 O 38,552 O 2,026,375
what is the solution to the proportion
4. Determine percentage of weight for age; height for age; head circumference for age; and the IBW for 9 months girl who is 72 cm in length; weight of 18.2#; and head circumference of 51 cm
Dr. A. Ventura is interested in determining what kinds and how many pets people own in Bakersfield. He stands outside Petco and asks people what kind of pet they own. This is the result of his survey: dog=1; cat=2; bird=3; reptile=4; fish=5; other=6 1,1,2,2,2,1,1,3,2,3,1,1,1,2,2,4,4,2,2,1,1,1,5,4,3,4,1,1,1,2,2,6,1,1,2,2,1,2,1,2,6,3,4,5
A class of 25 students includes 12 boys. Does the ratio of girls to students represent a fraction? Does the ratio of boys to girls represent a fraction? How do you know.
In Children’s Hospital in Seattle, there are, on average, 60 births per week. Mothers and babies stay, on average, two days before they leave the hospital. In Swedish Hospital (also in Seattle), the average number of births per week is 210. Mothers and children stay in the hospital two days, on average. a.On average, how many new mothers are staying in Children’s Hospital? Note: Round your answer to the nearest whole number. b. On average, how many new mothers are staying in Swedish Hospital? c-1. The directors of the two hospitals are negotiating unifying the children wards of the two hospitals. They believe that by doing so they will be able to reduce the number of new mothers staying in the hospital. You may assume that the average number of births and the lengths of stay of the new mothers will not change. Are they correct? multiple choice Yes No c-2. How many new mothers will stay, on average, in the unified ward? Note: Round your answer to the nearest whole number.
A survey found that about 49% of the people who work at an accounting firm take a company car pool van to work. a. If 21 people take the company car pool van to work, estimate the number of people who work at the company. b. If 21 people take the company car pool van to work, find the actual number of people who work at the company. Round to the nearest whole number. Make sure you show all of your work and explain your estimation clearly to earn full credit. Write your final answers in complete sentences. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph Arial 14px EVE v A
If a coin is flipped 225 times and the number of Hs is 75. Compute the proportion of Hs. Round to three places.
The accompanying table shows the results of a survey in which 250 male and 250 female workers ages 25 to 64 were asked if they contribute to a retirement savings plan at work. Complete parts (a) and (b) below. Click the icon to view the survey results. (a) Find the probability that a randomly selected worker contributes to a retirement savings plan at work, given that the worker is male. The probability that a randomly selected worker contributes to a retirement savings plan at work, given that the worker is male, is (Round to three decimal places as needed.) (b) Find the probability that a randomly selected worker is female, given that the worker contributes to a retirement savings plan at work. The probability that a randomly selected worker is female, given that the worker contributes to a retirement savings plan at work, is (Round to three decimal places as needed.)

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