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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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What is 12 m/mi = cm/s

yarga [219]

1 Cancel m.

12i=c*m/s

2 Use rule a*b/c = ab/c

12i=cm/s

3 Multiply both sides by s.

12is=cm

4 Divide both sides by 12.

is=cm/12

5 Divide both sides by i

s=cm/12/i

6 Simplify cm/12/i

s=sm/12i

4 0

3 years ago

What is the value of x in the equation 4x - 6+32(-2x+4)=3x -(x+4)?

Lina20 [59]

I think -2 is the answer

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3 years ago

Can you help me on 34 and 35 please

dusya [7]

-- #34 is choice-C .

-- See the picture attached to this answer, for both solutions.

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3 years ago

I have to get this so I pass help plz

pshichka [43]

Answer:

$\boxed{\sf x=-2}$

$\boxed{\sf y=-4}$

Step-by-step explanation:

First, Let's solve for x in -2x+2y=-4:

$\sf -2x+2y=-4$

Subtract 2y from both sides:

$\sf -2x+2y-2y=-4-2y$

$\sf -2x=-4-2y$

Divide both sides by -2:

$\sf \cfrac{-2x}{-2}=-\cfrac{4}{-2}-\cfrac{2y}{-2}$

$\bold{ x=y+2}$

Now, we'll substitute x=y+2 to 3x+3y=-18:

$\sf 3x+3y=-18$

→ let x=2+y

$\sf 3\bold{(2+y)}+3y=-18$

Simplify:

$\sf 6+6y=-18$

Now, let's solve for y in 6+6y=-18

$\sf 6+6y=-18$

Subtract 6 from both sides:

$\sf 6+6y-6=-18-6$

$\sf 6y=-24$

Divide both sides by 6:

$\sf \cfrac{6y}{6}=\cfrac{-24}{6}$

$\bold{ y=-4}$

Now, substitute y=-4 into x=2+y:

$\sf x=2+y$

→ let y = -4

$\sf x=2+\bold{-4}$

$\bold{x=-2}$

Therefore, x=-2 and y=-4.

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5 0

2 years ago

A used-droid dealership buys a droid for $2900 and then sells it for $4300. What is the percent increase?

Anna71 [15]

The percent increase is 48.28

Step-by-step explanation:

Given,

Purchase price of used-droid = $2900

Selling price of used=droid = $4300

Profit = Selling price - purchase price

Profit = 4300-2900 = $1400

Percent increase = $\frac{Profit}{Purchase\ price}*100$

$Percent\ increase=\frac{1400}{2900}*100\\\\Percent\ increase=\frac{140000}{2900}\\\\Percent\ increase=48.275\%$

Rounding off to nearest hundredth;

Percent increase = 48.28%

The percent increase is 48.28

Keywords: percentage, subtraction

Learn more about percentages at:

#LearnwithBrainly

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.