5x + 3x = 5x + 6 What value of 3x makes the equation true?

Answers

Answer 1

Answer:

-45 (9x-20) - 3x = 45x-6

-405x+900-3x = 45x-6

-408x+900 = 45x-6 (combine like terms)

906=453x (add 6 to 900 and - 408x to 45x)

2=x (divided )

X=2

Step-by-step explanation: I  hope this helps.


Related Questions

what is the value of d/dx(1/x) at x=6 ?​

Answers

If you know your derivative rules, then

d/dx [1/x] = -1/x ²

so that when x = 6, the derivative has a value of -1/36.

If you have to use the definition of the derivative, then

d/dx [1/x] = lim {h → 0} (1/(x + h) - 1/x) / h

… = lim {h → 0} (x - (x + h)) / (hx (x + h))

… = lim {h → 0} (-h) / (hx (x + h))

… = lim {h → 0} (-1) / (x (x + h))

… = -1/x ²

and at x = 6, you again get -1/36.

Alternatively, use the definition of the derivative at a point:

d/dx [1/x] (6) = lim {x → 6} (1/x - 1/6) / (x - 6)

… = lim {x → 6} ((6 - x) / (6x)) / (x - 6)

… = lim {x → 6} -(x - 6) / (6x (x - 6))

… = lim {x → 6} (-1) / (6x)

… = -1/36

If x = -2, which inequality is true?

2x + 6 < -1

2x - 3 > 6

-5 + 3x > 1

3 - x < 10

Answers

Step-by-step explanation:

The answer of this question is -5 + 3x > 1

If my answer is wrong so I am really sorry for it

On the surface, it seems easy. Can you think of the integers for x, y, and z so that x³+y³+z³=8? Sure. One answer is x = 1, y = -1, and z = 2. But what about the integers for x, y, and z so that x³+y³+z³=42?

Answers

Answer:

(-80538738812075974)^3 + 80435758145817515^3 + 12602123297335631^3 = 42

Step-by-step explanation:

This is obviously a bait question.

is this the right answer?

Answers

Yes your answer is solved correctly

help—————————————————

Answers

Answer:

False

Step-by-step explanation:

The range of the function is the set of all possible y values, in our case that would be {5, 6, 8, 13}, there for the range of the function is not {2, 4, 5, 6}, therefore the statement is false.

Find sides of a triangle with only the hyp and angles? I'm really confused

Answers

Answer:

x = 10√3

y = 10

Step-by-step explanation:

Step 1:

x = r·cos(30°)

y = r·sin(30°)

Step 2:

x = 20·√3/2 = 10√3

y = 20·1/2 = 10

However, there is a shortcut. Since there is a hypotenuse, there is a 90° angle. You are given a 30° angle, so the triangle is 30°-60°-90°.

The sides of a 30°-60°-90° triangle are in the ratio 1:√3:2.

The side opposite the 90° angle has length 20, so the side opposite the 30° angle has length 10, and the side opposite the 60° angle has length 10√3.

Explain answer !!

( WILL GIVE BRAINLEST)

Answers

Larissa: y = 250 - 25x

Chucho: y = 30 +30x

4 weeks

Step-by-step explanation: It says it in the problem, and you can see they cross at 4 weeks

Answer:

Larissa: y = 250 - 25x

Chucho: y = 30 +30x

4 weeks

Step-by-step explanation:

which equation is equivalent to 4(a-3)

Answers

Answer:

12-4

Step-by-step explanation:

You can expand this expression. 4 times a = 4a, and 4 times 3 is 12.
So the equivalent expression would be:

4a-12

What’s the answer please

Answers

With 1/2 of the marbles being red you are mostly likely to pick a RED marble out of the bag

how do I increase 36 by 40%​

Answers

50.4 should be the answer

Take 36 multiplied by 1,4

[tex]36 \times 1.4 = 50.4[/tex]

diego has some money in his bank account before he starts a summer job. he deposits the money from the summer job in his bank account and doesn't spend any of it. After working 3 hours, he has $71 in the account. After working 12 hours, he has $134 in the account.
How much money does diego earn per hour

Answers

Answer:

About $23.77 per hour.

Step-by-step explanation:

Just thank me later and click the crown at the top of this answer if this helped ;)

The Diego earn [tex]\$ 7[/tex] per hour.

Calculation:

Given that,

After working 3 hours, he has $71 in the account.

After working 12 hours, he has $134 in the account.

It means that, After working 9 hours,

         Diego earn [tex]=134-71=63[/tex]

In 9 hours, earning [tex]=63\$[/tex]

In one hour, earning [tex]=63/9=\$7[/tex]

Learn more about the per hour earning here:

https://brainly.com/question/536840

Find the area of the isosceles triangle.

20 cm
20 cm
32 cm

Answers

Answer:

20 cm

Step-by-step explanation:

just a guess since there isn't a pic

Please help will Mark brainlyest

Answers

Answer:

Lh i think ok so ok ok ok ok ok ok

Solve for indicated side

Your Answer:
Question 4 options:
Answer

Answers

Answer: x=10

Step-by-step explanation:

Picture below.

What is
8v+w+7−8v+2w

Answers

Answer:

3w+7

Step-by-step explanation:

Let's simplify step-by-step.

8v+w+7−8v+2w

=8v+w+7+−8v+2w

Combine Like Terms:

=8v+w+7+−8v+2w

=(8v+−8v)+(w+2w)+(7)

=3w+7

Explain answer !!

( WILL GIVE BRAINLEST)

Answers

Answer:find the solution to the system of equations below.start by adding the equation

{-2x+2y=-8

{2x+y=5

Step-by-step explanation:The given system of equation are:

1----  y= x -4

2----- y=4 x+2

Equation (1) - Equation (2)

→0= x -4 - (4 x+2)

→0=  -3 x -6-----[Adding and subtracting like terms]

Adding 3 x on both sides

→3 x= -6

Dividing by 3 on both sides

→x = -2

→Substituting the value of x in equation 1, we get

y= -2 -4

y =-6

→Solution set =(x,y)=(-2, -6)

Don't used the graph to find the solution.

How Students Spend Their Time
EATING
8%
HOMEWORK
8%
WATCHING TV
13%
SOCIALIZING
13%
SLEEPING
33%
SCHOOL
25%
HOW STUDENTS SPEND THEIR TIME
[tex]14y {. \times \frac{?}{?} }^{2} [/tex]

Answers

15% eating, 25% homework, 2% tv, 0% socializing, 35% sleeping, 50% school for me

8 less than six times a number y

Answers

6y-8
6y is 6 times y
-8 is 8 less

Help.
Which graph represents the solution to 5 times a number, n, is less than 65?

Answers

Answer: help

Step-by-step explanation: I need help too

The perimeter of a square is 20 in. What is its area? Label the square. How long is each side of the square?

Answers

Answer:

5

Step-by-step explanation:

If the whole square is 20in and there are four sides, then divide 20/4 which is 5

(I think)

11 b = 5, what is a
B. 25
C, 75
D. 125

Answers

Answer:

2.2

Step-by-step explanation:

pls answer asap
Which of these helped the Spanish defeat the Aztec Empire?

a Cortes's alliances with the Aztec's local enemies
b Montezuma's initial refusal to meet with Cortes
c the Spanish army's greater size
d Cuzco's geographic location

Answers

Answer:

43

Step-by-step explanation:

can anyone give me the answer?

Answers

Answer:

169

Step-by-step explanation:

The square area is 64 and the paralellogram is 105

Add those two: 64+105=169

Ugh I need so much help please

Answers

Answer:

Step-by-step explanation:

    Remember the SAS rule is that you know the measure of 2 sides and their angle in between. (Note that SSA side side angle DOESN'T work.)  For the first question we know that sides JH and LM are congruent, and sides GJ and MK are as well. Secondly, we know that angles M and J are congruent. The question is; does this problem follow the SAS (side angle side) rule? Yes, their are two proven congruent sides on the two triangles, and the angle between them is proven congruent as well.

Second one is congruent because it follows the SSS rule (side side side) ie: all sides are congruent, so therefore the triangles are congruent.

Think about the third one. Is it congruent or not. (To be congruent it has to follow SSS, or SAS) Comment below so I can correct you.

What is the area of the composite shape?
20 points and a brainlest

Answers

Answer:

257.

Step-by-step explanation:

seperate the shapes. we know that the side on the left upper corner is 7 because 29 - 22. The we find the other missing side, which is 26 - 21, 5. then we multiplt the first "box" to find the area, 21 x 7 = 147. Then the second box 5 x 21 = 110. Add the two, and you find your answer. 257

Stephanie had 7/8 pound of birdseed she use 3/8 pound to fill the birdfeeder how much birdseed to Stephanie have left?

Answers

Answer:

4/8 or 1/2

Step-by-step explanation:

7/8-3/8= 4/8 or 1/2

Answer:

Stephanie has [tex]\frac{1}{2}[/tex] a pound of birdseed left.

Step-by-step explanation:

  [tex]\frac{7}{8}[/tex] - [tex]\frac{3}{8}[/tex]

= [tex]\frac{4}{8}[/tex]

= [tex]\frac{1}{2}[/tex]

What is the circumference of a circle with a diameter for 5 feet use 3.14 for n

Answers

Answer:

circumference=15.7 feet

Step-by-step explanation:

5x3.14=circumference=15.7

Answer:

15.7 feet

Step-by-step explanation:

The formula for circumference is [tex]2\pi r[/tex].

The radius is half of the diameter: 2.5 in this case.

2.5 x 2 is 5.

3.14 x 5 is 15.7.

Hope it helps!

Last year Zack had two jobs.
Zack worked
.
in an office for 12 months and earned £2600 per month
at a gym for 39 weekends and earned £80 per weekend.
.
What fraction of his total income last year came from his work at the gym?
Write the fraction in its simplest form.

Answers

Office income = 12 months * (2600 pounds)/month = 31,200 pounds

Gym income = 39 weekends * (80 pounds)/weekend = 3,120 pounds

Total income = 31,200 + 3,120 = 34,320
3,120/34,320 = 39/429 = 3/

[tex]\frac{1}{11}[/tex] [tex]=0.909[/tex] of his total income last year came from his work at the gym.

What is fraction?

A fraction represents a part of a whole or, more generally, any number of equal parts. When spoken in everyday English, a fraction describes how many parts of a certain size there are, for example, one-half, eight-fifths, three-quarters.

According to questions, Last year Zack had two jobs.

Zack worked  in an office for [tex]12[/tex] months and earned  £[tex]2600[/tex] per month

and at a gym for [tex]39[/tex] weekends and earned £[tex]80[/tex] per weekend.

We have to find the fraction of his total income last year came from his work at the gym.

Office Income[tex]=[/tex]£[tex](2600[/tex]×[tex]12[/tex][tex])[/tex]  [tex]=[/tex]£[tex]31200[/tex]

Gym Income[tex]=[/tex]£ [tex](80[/tex]×[tex]39)[/tex][tex]=[/tex] £[tex]3120[/tex]

Total Income[tex]=[/tex]£ [tex]34320[/tex]

Fraction of his total income last year came from his work at the gym  

[tex]=\frac{3120}{34320} \\=\frac{1}{11}[/tex]

[tex]=0.909[/tex]

Hence, we can conclude that [tex]\frac{1}{11}[/tex] [tex]=0.909[/tex] of his total income last year came from his work at the gym.

Learn more about fraction  here:

https://brainly.com/question/18134643?referrer=searchResults

#SPJ2

help me please ASAP!!!!

Answers

ummmmmm you dont need the explanation and I'd rather not type but trust me its d, good luck!

PLZ HLP The figures are similar. Find x.

Answers

Answer:

if it is similar it would be 19

Step-by-step explanation:

Answer= 18
Explanation: they have a common factor of 3 3•3=9
3•7=21

3•2=6
3•6=18
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