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lesya [120]
3 years ago
9

How can you tell when the LCM of two numbers will equal one of the numbers or equal the product of the numbers

Mathematics
1 answer:
Vladimir79 [104]3 years ago
7 0

When one number will divide exactly into the other one then the other one will be the LCM. For example the LCM of 4 and 8 = 8 .

When they do not divide as above then the product of the numbers may be the LCM. For example the LCM of 3 and 4 = 3*4  = 12.  

The product is not always the LCM.  It might be a lower number . For example the LCM of 4  and 6 is not  24  but 12.  ( 24 / 2).

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Three-eighths of the students in a certain class are males and 3/5 of the male
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Answer:

3/5 of the students in the class are not in accounting majors

Step-by-step explanation:

The total number of males in the class is 3/8

3/5 of them are accounting majors

The ones who are not in accounting majors are;

3/8 - 3/5 = 9/40

The total number of female students in the class is;

8/8 - 3/8 = 5/8

1/4 of them are accounting majors

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Total number of students not in accounting majors;

9/40 + 3/8

= 24/40

= 3/5

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An airplane is flying at 180mph. A jet flying at 330 mph leaves 1 hour later traveling in the same direction. How long will it t
zimovet [89]

To solve this problem, let us first assign some variables. Let us say that:

v1 = velocity of airplane = 180 mph

t1 = time travelled by airplane

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But we know that:

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Therefore:

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150 t2 = 180

t2 = 1.2 hours

 

<span>Therefore the jet can catch up to the plane after 1.2 hours it takes off.</span>

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