b. 4 and 11
Mathematics, 20.10.2021 14:00 zanaplen27
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
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
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
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?
Whatβs the largest fraction in each group?
a. 5β6 and 29β36
b. 5β12 and 3β8
c. 2β5 and 19β45
d. 5β7, 13β14, and 19β21
Reduce each of the following fractions to its simplest form.
a. 12β18
b. 48β54
c. 27β90
d. 63β77
e. 24β32
f. 73β365
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 . . .?
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
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?
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?
Find the missing numerators in each of the following problems.
a. 10β15 = β60
b. β108 = 4β9
c. 7β11 = β121
d. β144 = 2β6
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? (Hint: Find the LCM of the planetsβ revolution times.)
Answers: 2
Mathematics, 20.06.2019 18:04
30 points! i am confused. what does it mean by game time? you can use a table of random numbers or a random number generator to create random samples. also, you can obtain random samples directly using wolframalpha.com. for example, typing in randomsample[{1,2,3,4,5},2] will give you a sample of size 2 from the list {1,2,3,4,5}. a sample result is {1,5}. refreshing the page will generate a new random sample of size 2. 2. create five random samples of size two from the population. record the game times for the samples and calculate the mean game time of each sample. 3. create 5 random samples of size 11 from the population. record the game times for the samples and calculate the mean game time of each sample.
Answers: 2
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"how does lena finally defeat the robots? β this question will best be used to describe the storyβs exposition. rising action. climax. falling action.
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Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers
Answers: 1
Whatβs the least common multiple (LCM) for each group of numbers?
a. 6 and 15
b. 4 and 11
b. 4 and 11
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