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3 years ago

The product of two numbers is 20. If one the numbers is 5/12 what is the other number

Mathematics

1 answer:

Zepler [3.9K]3 years ago

3 0

Answer:

48.

Step-by-step explanation:

Let's write a simple equation. Let x = other number, then

5/12 * x = 20

x = 20 / 5/12

x = 20 * 12 / 5

x = 4 * 12 = 48 (answer)

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Let f(x) = - 13x + 12 and g(x)= x² + 2.--Find f(3)/g(3).f(3)/g(3) = (?)(Type an integer or a simplified fraction.)

mel-nik [20]

We have the next two equations:

$f(x)=-13x+12$

And

$g(x)=x^2+2$

We need to find f(3)/g(3)

First, let's find f(3):

$f(3)\text{ = -13(3)+12 = -27}$

Then g(3):

$g(3)=(3)^2+2\text{ = 11}$

Now, the equation f(3)/g(3) :

$\frac{f(3)}{g(3)}=\frac{-27}{11}$

-27/11 is the result.

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1 year ago

Hello I need help on this math question

Zigmanuir [339]

Answer:

$50.24\ cm ^2$

Step-by-step explanation:

Let's start by finding the radius of this circle.

$D=2r\\8=2r\\\text{Divide both sides by 2}\\r=4$

Note that in the equation:

$A=\pi r^2$

"A" stands for area and "r" stands for radius.

Now, let's substitute the given values into the equation.

$A=\pi r^2\\A=3.14*(4)^2\\A=3.14*16\\A=50.24\ cm^2$

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2 years ago

Can someone please help with these question

GalinKa [24]

Answer:

1) 81.64 ft 2) 12.56 in

Step-by-step explanation:

a radius is a line <em>halfway</em> through the circle starting in the middle... a diameter is double that, or a line that goes <em>all the way </em>through the circle

you are working with diameter

in order to find the circumference of a circle using diameter, the equation is

C (circumference) = pi x d (diameter)

in order to find the circumference of a circle using radius, the equation is

C = 2 x pi x R (radius)

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3 years ago

Calculate the diameter of a circle if it's circumference is 25.1

Dmitrij [34]

The answer would be 7.99.

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Express 7/8 as a decimal

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