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ziro4ka [17]
3 years ago
14

What is the least common multiple of 14 21 and 28​

Mathematics
2 answers:
Maru [420]3 years ago
8 0

Answer:

it's 84

Step-by-step explanation:

I (did) the math for you

(look it up)

Sergeu [11.5K]3 years ago
4 0
Least common multiple (LCM) of 14, 21, 28 is 84.
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When Jill woke up, the temperature was -3 C. By noon the temperature had increased by 8 C.
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-3+8.

We know that the temperature /was/ -3, so it was 3 under zero. It has /risen/ by 8, meaning we have added 8 degrees to whatever the starting temperature was.

We can find out how much the temperature is right now: it was -3, went through -2, -1, 0, 1, 2, 3, 4, and now its at 5 degrees. Thats risen by 8 degrees, right? And -3+8 is the same as 8-3 (commutative property of addition, since we basically did 8+(-3)) which equals 5, so we know that we got the correct answer. :)



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