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Maru [420]
2 years ago
5

Find the gcf of 18a,20a,ang 6a please show work

Mathematics
2 answers:
Hatshy [7]2 years ago
7 0
18a: 3*3*3*2*a

20a: 2*2*5*a

6a: 3*2*a
the greatest common factor is 2a

sveta [45]2 years ago
6 0
Factors of 18: 1,2,3,6,9,18
factors of 20: 1,2,4,5,10,20
factors of 6: 1,2,3,6

prime factors of 18: 2,3,3,
prime factors of 20: 2,2,5
prime factors of 6: 2

gcf is 2
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Step-by-step explanation:

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serious [3.7K]

Answer:

15, 8, 66%, 40

Step-by-step explanation:

Hi! ok so in ogive charts its really about finding the corresponding data points and sometimes it's a lot of estimation so these answers may not be exact but they'll be close.

In the image, you'll see a bunch of lines, basically what youre doing is finding the corresponding frequency of the dollars or vice versa.

<em>question a)</em>

50 dollars or less, so the area of 50 dollars and below that.

from the chart we can see that this lines up to around 15 people.

<em>question b)</em>

now this one is a little bit more challenging, but you can use the same process as you did for the first question. so we can see who spent 100 dollars or less. this value is around 42 (just from looking at the graph)

<em>we know if you didn't spend 100 dollars or less, you must have spent more than that. </em>

so take 50-42=8

around 8<u> people</u> spent 100 dollars or more.

<em>question c)</em>

basically the same question as the first but more calculations are involved. from the graph we can see around 33 people spent 80 dollars or less. but the question is asking the percentage. so what percent of 50 (people) is 33.

33/50 = 0.66

around 66%

<em>question d)</em>

80th percentile means less than or equal to 80% of the frequencies/the data. so we first need to find what value that is in terms of frequency.

50 times 0.8 = 40

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3 years ago
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Answer:

point A is x=4 and y=12

point B is x=16 and y=32

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patriot [66]

Answer:

Mary removed the dollar sign from (X.)

We know this because $4.00x$5.00=$20.00 so that’s correct and we know that $12.50x $4.00=$50.00. So, our only error here is that there is no dollar sign in our (X) numbers. So that is Mary’s mistake. We can correct it by simply adding a dollar sign to 20 to make $20.00 and adding another dollar sign to 50 to make $50.00

Step-by-step explanation:

hope this helps

3 0
2 years ago
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