3 years ago

Is 2/5 greater than 3/7

Mathematics

1 answer:

lisov135 [29]3 years ago

3 0

Answer:

3/7 is greater than 2/5

Step-by-step explanation:

If you convert the fractions into decimals:

3/7=0.42

2/5=0.4

0.42 is greater than 0.4

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Make n the subject of the formula:<br> M=3n

stepladder [879]

M=3n
divide both sides by 3
M/3=3n/3
on the left hand side, the numerator constant cuts the denominator 3
therefore, n=M/3

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3 years ago

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In a pen of goats and chickens there are 25 heads and 90 feet. How many goats and chickens are in the pen.

Anna [14]

Answer:

5 chickens, 20 goats

Step-by-step explanation:

We can set up two equations and use substitution

There are 25 total goats and chickens, so

$G + C = 25$

Goats have 4 feet and chickens have two, so

$4G + 2C = 90\\$

By solving for G in the first equation,

$G = 25 - C\\$

We can now use substitution,

$G = 25 - C\\4G + 2C = 90\\4(25 - C) + 2C = 90\\100 - 4C + 2C = 90\\-2C = -10\\C = 5\\$

We have 5 chickens, so we have 20 goats.

Let's double check:

$5(2) + 20(4) = 90\\10 + 80 = 90\\90 = 90\\$

It checks out!

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4 years ago

Suppose that Njoman rolls a fair six-sided die and a fair four-sided die S uivant

ale4655 [162]

Answer:

1/6 ,1/6, 1/24, no events A and B are not independent events.

Step-by-step explanation:

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3 years ago

Please answer if you are the first person to answer all 3 = brainliest

Darina [25.2K]

Brackish, 53600 grams or 53.6 kg, and 200 packets

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3 years ago

PLZZZ HELP ME WITH THIS TWO.DUE TODAY!!Sorry if being annyoing its jusr have lot work

jeka94

Answer:

-2

Step-by-step explanation:

0 + -2 = -2

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3 years ago

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