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2 years ago

Are rational numbers a subset of real numbers?

Mathematics

2 answers:

valentinak56 [21]2 years ago

7 0

Answer: Yep! This is true.

Explanation: Real number subsets also include irrational numbers, whole numbers, integers, and natural numbers.

blagie [28]2 years ago

7 0

Answer:

Step-by-step explanation:

Yes!

A rational number is one that can be formed by a fraction. Real numbers include them along with the irrational numbers. The only kind of number that is not included is the complex number system - sqrt(-1) is one example.

Rational numbers: 4/5, 22/55, -56/44,3/1

Irrational numbers: still real sqrt(44),

Real numbers: both those listed above.

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A rectangular box has length 20cm, width 6cm and height 4cm. find how many cubes of size 2cm that will fit into the box.

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Answer:

$\boxed{\pink{\sf The \ number \ of \ cubes \ that \ can \ be \ fitted \ is 60 .}}$

Step-by-step explanation:

Given dimensions of the box = 20cm × 6cm × 4cm .

Dimension of the cube = 2cm × 2cm × 2cm .

Therefore the number of cubes that can be fitted into the box will be equal to the Volume of box divided by the Volume of the cube. So ,

$\boxed{\red{\bf \implies No. \ of \ cubes \ = \dfrac{Volume \ of \ box}{Volume \ of \ cube }}}$

$\bf \implies n_{cubes} = \dfrac{20cm \times 6cm \times 4cm .}{2cm \times 2cm \times 2cm } \\\\\bf\implies n_{cubes} = 10 \ times 3cm \times 2cm \\\\\implies \boxed{\bf n_{cubes}= 60 }$

<h3>Hence the number of cubes that can be fitted in the box is 60 .</h3>

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2 years ago

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) Which expression is equivalent to -24 - 12w?

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2 years ago

Please help,I don’t get this and my friends also need your help

ira [324]

STEP 1:
Add the number of total students
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STEP 2:
Find the percentage that 18 out of 75 students is.

18/75=x/100

cross multiply
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1800=75x
divide both sides by 75
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Check:
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