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zzz [600]
2 years ago
13

Divide 210kg in the the ratio 3:4​

Mathematics
1 answer:
e-lub [12.9K]2 years ago
4 0

Answer:

90: 120

Step-by-step explanation:

You have to divide it in 7 parts for the new one, so to find one part, you can do:

210 / 7 = 30 kg.

Then, the ratio would be 3 * 30 : 4 * 30 which is equal to 90: 120

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Find ????⋅ ???? if |????|=3 , |????|=9 , and the angle between ???? and ???? is π2 radians.
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Answer:

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Step-by-step explanation:

It is given that,

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