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Gennadij [26K]
3 years ago
13

The ratio between the square of a number and it's cube is 1:3 what is the number ​

Mathematics
1 answer:
Dimas [21]3 years ago
4 0

Answer:

3

Step-by-step explanation:

Call that number “x”

The square of that number is x^2

Also as the cube is x^3

The ratio between these 2 values is 1:3, this means x^2 / x^3 = 1 / 3

<==> 1 / x = 1 / 3 (eliminate “x^2” for numerator and denominator of the fraction x^2 / x^3 )

<==> x = 1 * 3 / 1 = 3

So, that number is 3 ! This math problem seems simple ;)

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Rehana has some money after she spend Rs15 she has Three quarter of the initial amount left the amount left is
ludmilkaskok [199]

Answer:

Amount left = Rs 45

Step-by-step explanation:

Let the initial amount be x.

Translating the word problem into an algebraic expression, we have;

x - 15 = \frac {3}{4} * x

x - 15 = \frac {3x}{4}

Cross-multiplying, we have;

4(x - 15) = 3x

4x - 60 = 3x

Rearranging the equation (collecting like terms), we have;

4x - 3x = 60

x = Rs 60

Next, we find the amount left;

Amount left = 60 - 15

Amount left = Rs 45

6 0
3 years ago
Are these numbers linear or nonlinear?
AfilCa [17]

Answer:

1 is linear 4 is also linear,

Step-by-step explanation:

im not entierly sure

7 0
3 years ago
** If you your answer contains an irrational number (a never ending decimal number) leave the number under the square root symbo
sdas [7]
The answer is the square root of 23 i.

(The “i” is outside of the square root symbol, and the 23 is positive).

Hope this helps! (:
4 0
3 years ago
The temperature is 5 degrees Fahrenheit by midnight the temperature is expected to drop 15 degrees Fahrenheit What will the temp
velikii [3]
-10 degrees Fahrenheit
8 0
3 years ago
Determine the intercepts of the line. -5x+9y=-18−5x+9y=−18minus, 5, x, plus, 9, y, equals, minus, 18 xxx-intercept: \Big((left p
natulia [17]

Answer:

  (3.6, 0), (0, -2)

Step-by-step explanation:

To find the y-intercept, set x=0:

  -5·0 +9y = -18

  y = -18/9 = -2

To find the x-intercept, set y=0:

  -5x +9·0 = -18

  x = -18/-5 = 3.6

The intercepts are ...

  x-intercept: 3.6

  y-intercept: -2

5 0
3 years ago
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