Mathematics, 22.06.2019 10:20 dookiefadep5n1tt
1.whatβs the least common multiple (lcm) for each group of numbers? a. 6 and 15 b. 4 and 11 c. 6, 9, and 12 d. 8, 10, and 20 2.whatβs the least common denominator (lcd) for each group of fractions? a. 1β6 and 7β8 b. 3β4 and 7β10 c. 7β12, 3β8 and 11β36 d. 8β15, 11β30 and 3β5 3.insert the βequalβ sign or the βnot equalβ sign ( = or β ) to make each statement true. a. 18/36 1/2 b. 13/15 7/10 c. 3/5 5/9 d. 3/8 10/16 4.on a hot summer day, john drank 5β11 of a quart of iced tea; gary drank 7β10 of a quart; and carter drank 3β5 of a quart. which man was the most thirsty? 5.whatβs the largest fraction in each group? a. 5β6 and 29β36 b. 5β12 and 3β8 c. 2β5 and 19β45 d. 5β7, 13β14, and 19β21 e. 7β11 and 9β121 f. 1β2, 3β18, and 4β9 6.reduce each of the following fractions to its simplest form. a. 12β18 b. 48β54 c. 27β90 d. 63β77 e. 24β32 f. 73β365 7.what is the next fraction in each of the following patterns? a. 1β40, 4β40, 9β40, 16β40, 25β40 . .? b. 3β101, 4β101, 7β101, 11β101, 18β101, 29β101. .? c. 5β1, 10β2, 9β2, 18β4, 17β8, 34β32, 33β256. .? 8.in each pair, tell if the fractions are equal by using cross multiplication. a. 5β30 and 1β6 b. 4β12 and 21β60 c. 17β34 and 41β82 d. 6β9 and 25β36 9.this year, a baseball player made 92 hits out of 564 times at bat. another player made 84 hits out of 634 times at bat. did the two players have the same batting average? 10.on a test with 80 questions, bob got 60 correct. on another test with 100 questions, he got 75 correct. did bob get the same score on both tests? 11.find the missing numerators in each of the following problems. a. 10β15 = β60 b. β108 = 4β9 c. 7β11 = β121 d. β144 = 2β6 12.this handy application of lcms is used by astronomers. all the planets in our solar system revolve around the sun. the planets occasionally line up together in their journeys, as shown in the illustration. the chart shows the time it takes each planet to make one trip around the sun. now, imagine that the planets earth, mars, jupiter, saturn, uranus, and neptune aligned last night. how many years will pass before this happens again? (hintβfind the lcm of the planetsβ revolution times.) solar system planet revolution time earth 1 year mars 2 years jupiter 12 years saturn 30 years uranus 84 years neptune 165 years
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Mathematics, 21.06.2019 17:30
Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.
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Mathematics, 22.06.2019 04:00
The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at , ( 59,60,61,62) and the third quartile would be drawn at . (61,62,63,64)
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Mathematics, 22.06.2019 04:50
Q.1 dr. frank needs to choose 3 students from her advanced biology course to attend a conference in hawaii. the course has 40 students. which of the following methods could dr. frank use to choose a simple, random sample of 3 students? select all that apply. 1 dr. frank could have the students line up from shortest to tallest, then use her birthdate, 2/5/39, to select 3 students from the line (the 2nd student, the 5th student, and the 39th student). 2. dr. frank could upload her class roster into a spreadsheet and use a ranom-number generating function to produce 3 random numbers. the students whose names are located in the rows with these 3 numbers on the spreadsheet would be chosen. 3. dr. frank could choose the students with the 3 highest grades in the class. 4. dr. frank could count to three, then the first students to come to the front of the classroom and grab a golden ticket from her hand would be selected. 5. dr. frank could ask all students to write their name on a card, place all of the cards in a hat, shake the hat, and then pull 3 cards out from the hat. the students whose names appear on those 3 cards will be selected. 6. dr. frank could ask for volunteers to go to the conference, then choose the first 3 students who raise their hands. q2. now, choose one of the methods that you did not select and explain why this method would not result in a simple, random sample:
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1.whatβs the least common multiple (lcm) for each group of numbers? a. 6 and 15 b. 4 and 11 c. 6, 9...
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