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3 years ago

Solve for x. −2(x+1/3)+9x=4 Enter your answer in the box.

Mathematics

2 answers:

Vilka [71]3 years ago

6 0

Gotcha!

If you would like for me show my work just let me know.

The answer would be x=2/3 or x=0.666.....

IrinaK [193]3 years ago

3 0

x= 2/3

ik because i had the same question hope it will help.

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A class has 24 students. The teacher asks how many students in the class have pets and finds 5/8of the students have pets. Write

katen-ka-za [31]

24 × 5/8 = 15, you can cross multiply by doing x/24 = 5/8 And solve for x

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3 years ago

Solve for x.

Ivahew [28]

ANSWER

$x=\frac{2-\sqrt{10}} {3}$

or

$x=\frac{\sqrt{10}+2} {3}$

We have

$3x^2-4x-2=0$

Since we cannot factor easily, we complete the square.

Adding 2 to both sides give,

$3x^2-4x=2$

Dividing through by 3 gives

$x^2-\frac{4}{3}x= \frac{2}{3}$

Adding $(-\frac{2}{3})^2$ to both sides gives

$x^2-\frac{4}{3}x+(-\frac{2}{3})^2= \frac{2}{3}+(-\frac{2}{3})^2$

The expression on the Left Hand side is a perfect square.

$(x-\frac{2}{3})^2= \frac{2}{3}+\frac{4}{9}$

$\Rightarrow (x-\frac{2}{3})^2= \frac{10}{9}$

$\Rightarrow (x-\frac{2}{3})=\pm \sqrt{\frac{10}{9}}$

$\Rightarrow (x)=\frac{2}{3} \pm {\frac{\sqrt{10}}{3}$

Splitting the plus or minus sign gives

$x=\frac{2- \sqrt{10}} {3}$

or

$x=\frac{\sqrt{10}+2} {3}$

3 0

3 years ago

Read 2 more answers

Please help!! Which of the following is equal to the rational expression when x ≠ 2 or -4? 5(x-2)/(x-2)(x+4)

Stels [109]

Answer:

5 / (x+4) x ≠2 x≠-4

Step-by-step explanation:

5(x-2)/(x-2)(x+4)

The denominator cannot be zero so x ≠2 x≠-4

Cancel like terms in the numerator and denominator

5 / (x+4) x ≠2 x≠-4

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3 years ago

Ryan counts 505,515, 525, 535, 545, 555. By which number does Ryan skip count?

raketka [301]

The Anwser would se 7,363

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2 years ago

4/7= 5/p. What is P? Pleas solve and show you r work!

vodka [1.7K]

This is a proportion. First you take the numerator times the denominator that is already solved. In this case you will take 5 times 7 and get 35. You then take 35 divided by 4 and get your answer.

8 0

3 years ago

​Solve for x. −2(x+1/3)+9x=4 ​ ​Enter your answer in the box.

Solve for x. −2(x+1/3)+9x=4 Enter your answer in the box.