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Valentin [98]
4 years ago
12

What is gcf and lcm? idont understand

Mathematics
2 answers:
Nutka1998 [239]4 years ago
5 0
GCF means greatest common factor and LCM means Least common multiple. 
pogonyaev4 years ago
5 0
GCF is greatest common factor, for example the GCF of 4 (1, 2, 4) and 12 (1, 2, 3, 4, 6, 12) is for because that is the biggest factor they have in common.

LCM is lowest common multiple, for example the LCM of 4 (4, 8, 12, 16, 20, 24, etc.) and 12 (12, 24, 36, 48, 60, etc.) is 12 because that is the smallest multiple they have in common.

You really need to know the difference between a factor and a multiple to understand it.

Hope this helps. :)
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 The area of the Andrea’s backyard (A2) is 400 ft², therefore, the<span> area of Andrea’s backyard, not including the swimming pool (A3), is:

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A dog and a cat are 200 meters apart when they see each other. The dog can run at a speed of 30 meter per second, while the cat
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Answer:

They'll meet after 200 meters , if they simultaneously start running towards each other.

Step-by-step explanation:

Let x =distance travelled by dog and 200-x be the distance travelled by cat. Inorder to meet, the sum of their travelled distances shall be equal to 200 meters as they are far apart by 200 meters.

Dog: Distance =Speed x time: x=30t

Cat: Distance = 200-x

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The sum of their distance travelled shall be 200 meters: 30t+ 24t= 200;54t=200;t=200/54=3.7secs

So they will meet after 3.7 seconds

To check:

Distance travelled by dog :x=30(3.7)

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Distance travelled by cat: 24t=24(3.7)

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Therefore since they are travelling towards each other and their distance apart is 200 meters, after 3.7 seconds they will meet because dog travelled 111.11 meters and cat travelled 88.89 meters and they covered already 200 meters as the sum of 111.11+ 88.89

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Based on the information given the original size of the bottle is 17.5 ounces.

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Inconclusion the original size of the bottle is 17.5 ounces.

Learn more about original size of the bottle here:brainly.com/question/25001466

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