3 years ago

Add or subtract. use the least common multiple as the denominator what is 3/5+3/20

1 answer:

3 0

Answer: 3/4

Step-by-step explanation:

First step, write it down, second, make it so the denominator is the same, then add. If it can be simplified, simplify.

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zmey [24]

$\dfrac{1}{60}+\dfrac{1}{40}=\dfrac{1}{x}\\
\dfrac{2}{120}+\dfrac{3}{120}=\dfrac{1}{x}\\
\dfrac{5}{120}=\dfrac{1}{x}\\
5x=120\\
x=24$

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3 years ago

LenaWriter [7]

Answer:

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Step-by-step explanation:

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nika2105 [10]

Answer:

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Step-by-step explanation:

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docker41 [41]

M=30/22,5=1,33
m=25/x=1,33. ...>x=25/1,33=18,7

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3 years ago

Vitek1552 [10]

Dr/dt= 8cmM-¹
dA/dt = ?
but A= πr²
so dA/dr =2πr
but recall
dA/dt = dA/dr • dr/dt
dA/dt = 2πr • 8cmM-¹
dA/dt = 2×π×39 ×8 = 624cm²M-1

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3 years ago