3 years ago

What is 3/5 of 7 kg ?

Mathematics

2 answers:

MAVERICK [17]3 years ago

3 0

What is 3/5 of 7 kg ?

of = multiplication

3/5 × 7 = ?
0.6 × 7 =
4.2

3/5 of 7 kg is 4.2 kg.

Nuetrik [128]3 years ago

3 0

We do the following:
3/5 x 7 = 21/5 kg(in fractions), which is equal to 4.2 kg(in decimals)

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Can you help me solve this please

OLga [1]

Answer:

-22+27i

Step-by-step explanation:

$i = \sqrt{ - 1} \\ (3 - 4i)( - 6 + i) \\ = (3 - 4 \sqrt{ - 1} )( - 6 + \sqrt{ - 1} ) \\ = 3( - 6 + \sqrt{ - 1)} - 4 \sqrt{ - 1} ( - 6 + \sqrt{ - 1} ) \\ = - 18 + 3 \sqrt{ - 1} + 24 \sqrt{ - 1} - 4 \\ = - 22 + 27 \sqrt{ - 1} \\ putting \: \: \: \sqrt{ - 1 } = i \\ = - 22 + 27i$