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3 years ago

Rational numbers are always,sometimes, never natural numbers?

Mathematics

1 answer:

SVETLANKA909090 [29]3 years ago

4 0

Natural numbers are all whole, positive numbers. Like 1, 2, 3, 4, 5...

Rational numbers are numbers that can be expressed as a fraction, though they dont have to be a fraction.

Rational numbers are sometimes natural numbers.

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The length of a rectangle is 13 centimeters less than three times its width. Its area is 56 square centimeters. Find the dimensi

tatuchka [14]

Answer:

Area = length x width

Area = (3width - 13) x width

Area = 3 width^2 -13width

56 = 3width^2 -13 width

Width = 7

Length = (3 *7) -13 = 8

Step-by-step explanation:

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3 years ago

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Adding and Subtracting Fractions Solve each problem. Write your answer as a mixed number(if possible) 1. 2 1/9 - 7/6= 2. 2/3 + 2

AleksandrR [38]

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2) 1 1/6
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3 years ago

The denominator of a fraction is 4 more than the numerator if both are decreased by 3 the simplified result is 6/7 find original

Hitman42 [59]

Answer:

The denominator of a fraction is 4 more than the numerator. The original fraction is $\frac{27}{31}$

Solution:

Given that

Denominator of fraction is 4 more than the numerator.

Let’s say numerator of fraction be represented by variable x.

So denominator of a faction as it is four more that numerator will be x + 4

Also given if both decreased by three than simplified result is $\frac{6}{7}$

$=>\frac{(x-3)}{((x+4)-3)}=\frac{6}{7}$

Solving above equation for x

=> 7(x – 3 ) = 6 ( x + 1 )

=> 7x – 21 = 6x + 6

=> 7x – 6x = 6 + 21

=> x = 27

Numerator of fraction = x = 27

Denominator of fraction = x + 4 = 27 + 4 = 31

$\text {required fraction}=\frac{\text {numerator}}{\text {denominator}}$

$= \frac{27}{31}$

Hence the original fraction is $\frac{27}{31}$

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2 years ago

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wlad13 [49]

Answer:

A=522

Explanation:

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3 years ago