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2 years ago

Least common multiple find the least common multiple of each set of numbers 15 and 20

Mathematics

2 answers:

just olya [345]2 years ago

7 0

LCM for 15 and 20 is 60.

Here, let's use 20. Add it by 20 and you'll get 40. 15 is not a multiple of 40, so we add 20 to 40 again. 60 is a multiple of 15.

15 x 4

Hope this helped. =]

enot [183]2 years ago

5 0

Answer: 60

Step-by-step explanation:

multiples of 20: 20, 40, 60, 80 100

multiples of 15: 15, 30, 45, 60, 75

which one is similar?

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See attachment for graph.

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3 years ago

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2 years ago

I need to know the answer

antoniya [11.8K]

2 days late, but the answer is no solution. solving a system of equations means finding where they intersect, but by looking at these equations, you know that they never intersect--they're parallel.

they share a slope (2), making them either parallel or "the same line", but the different x-intercepts (9 and -9) mean that they're different lines. they have no solution, or no intersection point, because they're parallel lines.

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