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andre [41]
3 years ago
9

3:4 = 15:20. True OR False?

Mathematics
2 answers:
Aleksandr-060686 [28]3 years ago
5 0
It is a true answer. 3:4=15:20
7nadin3 [17]3 years ago
3 0
True.
3 x 5 = 15
4 x 5 = 20

Therefore, 3:4 = 15:20

it is True

hope this helps
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A wheel spins at 300 revolutions per minute. What is the angular velocity of the wheel, in radians per second? Round the answer
Mandarinka [93]
Angular velocity = 300 revolutions per minute

1 revolution = 2π radians.

So, we can write:

Angular velocity = 300 x 2π radians per minute = 600π radians per minute

1 minute = 60 seconds.

So, 

Angular velocity = 600π radians per 60 seconds
⇒
Angular velocity = 10π radians per second
Angular velocity = 31.42 radians per second

Thus, rounding of to nearest hundredth, the angular velocity will be 31.42 radians per second. 
6 0
3 years ago
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Mr Hamal had Rs 4,400.He purchased 6 kg of rice at Rs 75 per kg,2packets of oil at Rs 125 per packet and he gave Rs3,300 to his
snow_lady [41]

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Step-by-step explanation:

6 kg of rice = 75*6 = Rs 450

2 packets of oil = RS 2*125 = RS 250

now total money he spent = Rs 450 + Rs 250 + Rs Rs 3,300

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Money left = Rs 4,400-Rs 4000 = Rs 400

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400/2 = Rs 200

4 0
2 years ago
Simplify: ⅕y - ⅗y + 5 - ⅖y - 8<br> pls
MrRissso [65]

Answer:

The answer is -(4/5)y - 3.

Step-by-step explanation:

The steps are :

\frac{1}{5} y -  \frac{3}{5} y + 5 -  \frac{2}{5} y - 8

= ( \frac{1 - 3 - 2}{5} y) + (5 - 8)

=  -  \frac{4}{5} y - 3

5 0
3 years ago
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konstantin123 [22]

Answer:

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Step-by-step explanation:

just move A down to -1 and and you can see they are the same.

7 0
3 years ago
Which expression is equivalent to
ser-zykov [4K]

Answer:

Option 2) x^{\frac{1}{8}}y^8

Step-by-step explanation:

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=> x^{\frac{1}{4} * \frac{1}{2} } * y ^{16*\frac{1}{2} }

=> x^{\frac{1}{8}}y^8

6 0
3 years ago
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