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2 years ago

20 is 80% of what number?

Mathematics

2 answers:

Gre4nikov [31]2 years ago

7 0

Answer:

25 is answer.

80% of x=20

x=20×100/80=25

Oxana [17]2 years ago

6 0

It’s 25. Hope this helps ✌️

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love history [14]

As, synthetic division by -4 gives remainder 0. Hence, Option B is correct. -4 is a root of $3x^{2} +7x-20$

As, x+4=0 gives x=-4.

So, option C is correct,

(x+4) is factor of $3x^{2} +7x-20$

Option E is correct

$\frac{3x^{2} +7x-20 }{x+4}=3x-5$

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VikaD [51]

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2 years ago

What is the solution to 6x=30

Tasya [4]

Answer:

$\boxed{x=5}$

Step-by-step explanation:

Division property of equality- is dividing both sides of an equation by the same non-zero number it does not change the equation.

First you had to divide by six from both sides of an equation form.

$\frac{6x}{6}= \frac{30}{6}$

$30/6=5$

$30/5=6$

$5*6=30$

$6*5=30$

$x=5$

$5=x$

Final answer: $\boxed{x=5}$

Hope this helps!

And thank you for posting your question at here on brainly, and have a great day.

-Charlie

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3 years ago

What is the exponential form of the following expression? (-5)(-5)(-5) . c . c .c

andrew-mc [135]

Answer:

$(-5)^3 * c^3$

Step-by-step explanation:

Given

$(-5)(-5)(-5) * c * c * c$

Required

The exponent form

We have:

$(-5)(-5)(-5) * c * c * c$

Apply the following law of indices;

$x * x * x ...... = x^n$

So, the expression becomes:

$(-5)^3 * c^3$

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