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3 years ago

A 12% discount on a tent saved melanie $75 what was the original price

1 answer:

7 0

So 12% of a number is $75
12% of x is 75
0.12 of x is 75
0.12 * x = 75
divide both numbers by 0.12
x = 625

To check:
12% of 625 =?= 75
75 = 75

Hope this helps

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If f(X+4) =3x+4 , then find the value of f(4) please explain it clearly .

Paul [167]

$\\ \sf\longmapsto f(x+4)=3x+4$

$\\ \sf\longmapsto f(x)=3x+4-4$

$\\ \sf\longmapsto f(x)=3x$

Now

$\\ \sf\longmapsto f(4)$

$\\ \sf\longmapsto 3(4)$

$\\ \sf\longmapsto 12$

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2 years ago

Solvex - 3x + 2 = 0 using substitution. U= x X^2 3x^2 X^4

nikitadnepr [17]

Answer:

x = $\frac{2}{3}$ Is the correct answer

Step-by-step explanation:

Move all terms that don't contain x to the right side and solve.

In pic

(Credit:Symbolab)

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Solve sin2x=-1/2 on the interval 0≤ angle≤360°

GREYUIT [131]

Answer:

x=135

Step-by-step explanation:

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2 years ago

PLZ HELPPPP

Lana71 [14]

7 times x to the three fourths power in radical form is Fourth root of quantity 7 times x to the third power.

So, Option C is correct.

Step-by-step explanation:

We need to write 7 times x to the three fourths power in radical form

First writing 7 times x to the three fourths power in mathematical form:

$7x^{\frac{3}{4}$

Writing it into radical form:

$7x^{\frac{3}{4}$

We know 1/4 = $\sqrt[4]{}$

So,

$\sqrt[4]{(7x)^3}$

Writing it into words:

Fourth root of quantity 7 times x to the third power.

So, 7 times x to the three fourths power in radical form is Fourth root of quantity 7 times x to the third power.

So, Option C is correct.

Keywords: Radical Expression

Learn more about Radical Expression at:

#learnwithBrainly

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