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3 years ago

Divide 300 in a ratio of 3/7

Mathematics

1 answer:

Talja [164]3 years ago

7 0

in short, we simply divide the whole 300 by (3+7), to get in a 3:7 ratio, and then distribute accordingly.

$\bf 300\qquad 3:7\qquad \cfrac{3}{7}~\hspace{5em}\cfrac{3\cdot \frac{300}{3+7}}{7\cdot \frac{300}{3+7}}\implies \cfrac{3\cdot 30}{7\cdot 30}\implies \cfrac{90}{210}\implies 90:210$

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ladessa [460]

Answer:

$x^{2}-2+\frac{20}{x+7}$

Step-by-step explanation:

x + 7) x³ + 7x²- 2x + 6 ( x²- 2

-2x + 6

+20

Therefore, we can write the expression in the remainder quotient form as,

$x^{2}-2+\frac{20}{x+7}$

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3 years ago

One student ate 3/20 of all candies and another 1.2 lb. The second student ate 3/5 of the candies and the remaining 0.3 lb. What

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The students ate 6 lbs of candies.

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3 years ago

Any suggestions or answers

Sati [7]

Answer:

$x=81\degree$

$y=99\degree$

$z=129\degree$

Step-by-step explanation:

The sum of the interior angles of a triangle is 180 degrees.

$\implies 51\degree+48\degree+x=180\degree$

$\implies 99\degree+x=180\degree$

$\implies x=180\degree-99\degree$

$\implies x=81\degree$

Use the exterior angles theorem to find y.

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$y=51\degree+48\degree=99\degree$

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3 years ago

13. What is the distance between the y-intercept of the function f(x) = 2(3)* and the y-intercept of the function g(x) represent

Oliga [24]

Answer:

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2 years ago

What are the solutions of the equation?

yKpoI14uk [10]

Answer:

Option (b) is correct.

The solution of the quadratic equation $x^2+4x=21$ is -7 and 3

Step-by-step explanation:

Consider the given quadratic equation $x^2+4x=21$

This can be rewritten as, $x^2+4x-21=0$

We can solve the quadratic equation using middle term splitting method,

4x can be written as 7x-3x , we get,

$\Rightarrow x^2+4x-21=0$

$\Rightarrow x^2+7x-3x-21=0$

Taking terms common, we get,

$\Rightarrow x(x+7)-3(x+7)=0$

Thus, $\Rightarrow (x-3)(x+7)=0$

Thus, we get (x-3)= 0 or (x+7)= 0

this gives x = 3 or x = -7

Thus, the solution of the quadratic equation $x^2+4x=21$ is -7 and 3

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3 years ago